Jochen Keysberg of Bilfinger Berger AG addresses a news conference in Cologne February 26, 2010. Workers have admitted of stealing reinforcing steel for a retaining wall under the building to support the Cologne City Archives before its collapse into a heap of rubble in the city of Cologne on March 3, 2009. The new underground line of Cologne's public transport authority, the KVB, runs from the south city to the railway station. REUTERS/Ina Fassbender (GERMANY - Tags: DISASTER BUSINESS)