A woman holds a copy of the latest book by Germany's former defence minister Karl-Theodor zu Guttenberg at a book shop in Berlin November 29, 2011. The book titled "Failed For Now" went on sale on Tuesday in Germany. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MEDIA) 

Former German minister of defence Karl-Theodor zu Guttenberg waits for a debate to begin during the Halifax International Security Forum at the Westin Nova Scotian hotel in Halifax, Nova Scotia November 19, 2011. REUTERS/Sandor Fizli (CANADA - Tags: MILITARY POLITICS) 

Bayreuth's university commission report is seen during a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenbergs doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair. REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS) 

Ruediger Bormann president of Bayreuth's university commission addresses a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenbergs doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair. REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS HEADSHOT) 

Ruediger Bormann (C) president of Bayreuth's university commission addresses a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenbergs doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair. REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS) 

Ruediger Bormann (3rd L) president of Bayreuth's university commission addresses a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenbergs doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair. REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS) 

Ruediger Bormann president of Bayreuth's university commission gestures during a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenbergs doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair. REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS) 

Ruediger Bormann president of Bayreuth's university commission gestures during a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenbergs doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair. REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS HEADSHOT) 

Ruediger Bormann president of Bayreuth's university commission arrives for a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenberg's doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair. REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS EDUCATION) 

Ruediger Bormann (L) president of Bayreuth's university commission arrives for a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenbergs doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair.
REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS) 

Ruediger Bormann, president of Bayreuth's university commission arrives for a news conference about former German Defence Minister Karl-Theodor zu Guttenberg's dissertation in Bayreuth May 11, 2011. The commission published a report on Wednesday, showing details of the plagiarism in Guttenbergs doctoral thesis. Guttenberg admitted flaws in his doctoral dissertation, before resigning under pressure over the plagiarism affair.
REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS) 

New German Defence Minister Thomas de Maiziere (R) and his predecessor Karl-Theodor zu Guttenberg (C) talk to Chancellor Angela Merkel after they review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. Reuters/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere (C) and Chief of Staff of the German army Bundeswehr Volker Wieker (red beret) review a Grand Tattoo of the German armed forces Bundeswehr as former defence minister Karl-Theodor zu Guttenberg (2nd R) shakes hands with a soldier in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

Members of the German armed forces Bundeswehr attend a Grand Tattoo for new German Defence Minister Thomas de Maiziere and his predecessor Karl-Theodor zu Guttenberg in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

Germany's former defence minister Karl-Theodor zu Guttenberg receives a certificate from a soldier as he reviews a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere (hidden), his predecessor Karl-Theodor zu Guttenberg (2nd L) and Chief of Staff of the German army Bundeswehr Volker Wieker (3rd L) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

Members of the German armed forces Bundeswehr attend a Grand Tattoo for new German Defence Minister Thomas de Maiziere and his predecessor Karl-Theodor zu Guttenberg in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere (L), his predecessor Karl-Theodor zu Guttenberg (C) and Chief of Staff of the German army Bundeswehr Volker Wieker (R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

Stephanie zu Guttenberg (R), the wife of former German Defence Minister Karl-Theodor zu Guttenberg, leaves a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere (R) and his predecessor Karl-Theodor zu Guttenberg (C) talk to Chancellor Angela Merkel after they review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

German Consumer Protection Minister Ilse Aigner, Health Minister Philipp Roesler, Stephanie zu Guttenberg, the wife of former German Defence Minister Karl-Theodor zu Guttenberg, and Chancellor Angela Merkel (L-R) attend a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere (L), his predecessor Karl-Theodor zu Guttenberg (C) and Chief of Staff of the German army Bundeswehr Volker Wieker (hidden) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere (L) and his predecessor Karl-Theodor zu Guttenberg smile as they review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (centre, L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

Members of German armed forces Bundeswehr attend a Grand Tattoo for new German Defence Minister Thomas de Maiziere and his predecessor Karl-Theodor zu Guttenberg in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere (L) and his predecessor Karl-Theodor zu Guttenberg review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

Members of the German armed forces Bundeswehr attend a Grand Tattoo for new German Defence Minister Thomas de Maiziere and his predecessor Karl-Theodor zu Guttenberg in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

New German Defence Minister Thomas de Maiziere, his predecessor Karl-Theodor zu Guttenberg and Chief of Staff of the German army Bundeswehr Volker Wieker (L-R) review a Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

Members of the German armed forces Bundeswehr attend a Grand Tattoo for new German Defence Minister Thomas de Maiziere and his predecessor Karl-Theodor zu Guttenberg in Berlin March 10, 2011. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

German Chancellor Angela Merkel (R) and Stephanie zu Guttenberg, the wife of former German Defence Minister Karl-Theodor zu Guttenberg, arrive at the Grand Tattoo of the German armed forces Bundeswehr in Berlin March 10, 2011. Reuters/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

Photographers take a picture of a supporter of former German defence minister Karl-Theodor zu Guttenberg during the party's traditional Ash Wednesday meeting in Passau March 9, 2011. REUTERS/Michaela Rehle (GERMANY - Tags: POLITICS CIVIL UNREST) 

A carnival reveller dressed as German former Defence Minister Karl-Theodor zu Guttenberg celebrates the traditional Rose Monday carnival parade in the western German city of Duesseldorf March 7, 2011. The Rose Monday parades in Cologne, Mainz and Duesseldorf are the highlight of the German street carnival season. REUTERS/Ina Fassbender (GERMANY - Tags: SOCIETY ENTERTAINMENT) 

A carnival float a papier-mache representation of former German Defence Minister Karl-Theodor zu Guttenberg flying an air plane into the Chancellery, is pictured during the traditional Rose Monday carnival parade in the western German city of Duesseldorf March 7, 2011. The Rose Monday parades in Cologne, Mainz and Duesseldorf, with their popular floats satirising the year's big news events, are the highlight of the German street carnival season. REUTERS/Ina Fassbender (GERMANY - Tags: SOCIETY ENTERTAINMENT) 

A carnival float representing former German Defence Minister Karl Theodor zu Guttenberg is pictured during the traditional Rose Monday carnival street parade in the western German city of Cologne March 7, 2011. The Rose Monday parades in Cologne, Mainz and Duesseldorf, with their popular floats satirising the year's big news events, are the highlight of the German street carnival season. REUTERS/Alex Domanski (GERMANY - Tags: ENTERTAINMENT SOCIETY) 

A carnival float representing former German Defence Minister Karl Theodor zu Guttenberg is pictured during the traditional Rose Monday carnival street parade in the western German city of Cologne March 7, 2011. The Rose Monday parades in Cologne, Mainz and Duesseldorf, with their popular floats satirising the year's big news events, are the highlight of the German street carnival season. REUTERS/Alex Domanski (GERMANY - Tags: ENTERTAINMENT SOCIETY) 

Carnival revellers wearing masks of former German Defence Minister Karl-Theodor zu Guttenberg attend the Rose Monday street carnival parade in Mainz, March 7, 2011. The Rose Monday parades in Cologne, Mainz and Duesseldorf are the highlight of the German street carnival season. REUTERS/Ralph Orlowski (GERMANY - Tags: SOCIETY ENTERTAINMENT) 

A carnival float a papier-mache representation of former German Defence Minister Karl-Theodor zu Guttenberg flying an air plane into the Chancellery, is pictured during the traditional Rose Monday carnival parade in the western German city of Duesseldorf March 7, 2011. The Rose Monday parades in Cologne, Mainz and Duesseldorf, with their popular floats satirising the year's big news events, are the highlight of the German street carnival season. REUTERS/Ina Fassbender (GERMANY - Tags: SOCIETY ENTERTAINMENT) 

A carnival float a papier-mache representation of former German Defence Minister Karl-Theodor zu Guttenberg flying an air plane into the Chancellery, is pictured during the traditional Rose Monday carnival parade in the western German city of Duesseldorf March 7, 2011. The Rose Monday parades in Cologne, Mainz and Duesseldorf, with their popular floats satirising the year's big news events, are the highlight of the German street carnival season. REUTERS/Ina Fassbender (GERMANY - Tags: SOCIETY ENTERTAINMENT) 

A carnival float a papier-mache representation of former German Defence Minister Karl-Theodor zu Guttenberg flying an air plane into the Chancellery, is pictured during the traditional Rose Monday carnival parade in the western German city of Duesseldorf March 7, 2011. The Rose Monday parades in Cologne, Mainz and Duesseldorf, with their popular floats satirising the year's big news events, are the highlight of the German street carnival season. REUTERS/Ina Fassbender (GERMANY - Tags: SOCIETY ENTERTAINMENT IMAGES OF THE DAY) 

A man holds a poster depicting Germany's former Defence Minister Karl-Theodor zu Guttenberg during a demonstration in Berlin, March 5, 2011. Several protesters gathered on Saturday to demonstrate for and against zu Guttenberg after German Chancellor Angela Merkel replaced him with Interior Minister Thomas de Maiziere earlier last week. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS CIVIL UNREST) 

Protesters hold banner reading 'Gutti is the best!' (referring to German former Defence Minister Karl-Theodor zu Guttenberg) during a demonstration in Berlin, March 5, 2011. Several protesters gathered on Saturday to demonstrate for and against zu Guttenberg after German Chancellor Angela Merkel replaced him with Interior Minister Thomas de Maiziere earlier last week. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS CIVIL UNREST) 

Protesters hold banner reading 'Gutti is the best!' (referring to German former Defence Minister Karl-Theodor zu Guttenberg) during a demonstration in Berlin, March 5, 2011. Several protesters gathered on Saturday to demonstrate for and against zu Guttenberg after German Chancellor Angela Merkel replaced him with Interior Minister Thomas de Maiziere earlier last week. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS CIVIL UNREST) 

German Chancellor Angela Merkel and President Christian Wulff watch as former defence minister Karl-Theodor zu Guttenberg (R) shakes hands with newly appointed Defence Minister Thomas de Maiziere during a ceremony in presidential residence Bellevue palace in Berlin, March 3, 2011. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS)

Germany's new Interior Minister Hans-Peter Friedrich attends a news conference in Berlin, March 3, 2011. German Chancellor Angela Merkel replaced Defence Minister Karl-Theodor zu Guttenberg with Interior Minister Thomas de Maiziere and Hans-Peter Friedrich, the parliamentary leader for the Christian Social Union (CSU), succeeded de Maiziere as Interior Minister. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS HEADSHOT) 

Germany's new Interior Minister Hans-Peter Friedrich smiles during a news conference in Berlin, March 3, 2011. German Chancellor Angela Merkel replaced Defence Minister Karl-Theodor zu Guttenberg with Interior Minister Thomas de Maiziere and Hans-Peter Friedrich, the parliamentary leader for the Christian Social Union (CSU), succeeded de Maiziere as Interior Minister. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS) 

German new Defence Minister Thomas de Maiziere (2nd R) and his predecessor Karl-Theodor zu Guttenberg attend an office handing over ceremony at the Defence Ministry in Berlin, March 3, 2011. German Chancellor Angela Merkel replaced Defence Minister Karl-Theodor zu Guttenberg with Interior Minister Thomas de Maiziere and Hans-Peter Friedrich, the parliamentary leader for the Christian Social Union (CSU), succeeded de Maiziere as Interior Minister. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

German new Defence Minister Thomas de Maiziere (C), his predecessor Karl-Theodor zu Guttenberg (L) and Chief of Staff of the German army Bundeswehr Volker Wieker inspect the guard of honour during an office handing over ceremony at the Defence Ministry in Berlin, March 3, 2011. German Chancellor Angela Merkel replaced Defence Minister Karl-Theodor zu Guttenberg with Interior Minister Thomas de Maiziere and Hans-Peter Friedrich, the parliamentary leader for the Christian Social Union (CSU), succeeded de Maiziere as Interior Minister. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

German former Defence Minister Karl-Theodor zu Guttenberg (C) attends an office handing over ceremony to his successor Thomas de Maiziere in Berlin, March 3, 2011. German Chancellor Angela Merkel replaced Defence Minister Karl-Theodor zu Guttenberg with Interior Minister Thomas de Maiziere and Hans-Peter Friedrich, the parliamentary leader for the Christian Social Union (CSU), succeeded de Maiziere as Interior Minister. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

German new Defence Minister Thomas de Maiziere (C), his predecessor Karl-Theodor zu Guttenberg (L) and Chief of Staff of the German army Bundeswehr Volker Wieker inspect the guard of honour during an office handing over ceremony at the Defence Ministry in Berlin, March 3, 2011. German Chancellor Angela Merkel replaced Defence Minister Karl-Theodor zu Guttenberg with Interior Minister Thomas de Maiziere and Hans-Peter Friedrich, the parliamentary leader for the Christian Social Union (CSU), succeeded de Maiziere as Interior Minister. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

German former Defence Minister Karl-Theodor zu Guttenberg (C) attends an office handing over ceremony to his successor Thomas de Maiziere in Berlin, March 3, 2011. German Chancellor Angela Merkel replaced Defence Minister Karl-Theodor zu Guttenberg with Interior Minister Thomas de Maiziere and Hans-Peter Friedrich, the parliamentary leader for the Christian Social Union (CSU), succeeded de Maiziere as Interior Minister. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY) 

German former Defence Minister Karl-Theodor zu Guttenberg (L) takes a bow during an office handing over ceremony to his successor Thomas de Maiziere in Berlin, March 3, 2011. German Chancellor Angela Merkel replaced Defence Minister Karl-Theodor zu Guttenberg with Interior Minister Thomas de Maiziere and Hans-Peter Friedrich, the parliamentary leader for the Christian Social Union (CSU), succeeded de Maiziere as Interior Minister. REUTERS/Tobias Schwarz (GERMANY - Tags: POLITICS MILITARY)