A pharmacy shop sign is seen in Valletta, Malta May 22, 2018. REUTERS/Darrin Zammit Lupi 

Police officers stand in front of the Government House after the presentation of new patrol cars and equipment for the Federal Police in Buenos Aires March 14, 2011. From affluent suburbs to the slums next door, residents live with burglar alarms, iron window grates and a growing fear of violent crime in the urban sprawl that fringes Argentina's capital. Argentines used to be proud of their country's reputation for safety in a notoriously violent region, but things have changed dramatically. Picture taken March 14, 2011. REUTERS/Enrique Marcarian (ARGENTINA - Tags: CIVIL UNREST CRIME LAW POLITICS ELECTIONS) 

Argentine President Cristina Fernandez de Kirchner stands next to Police Chief Enrique Capdevila (2nd L) during the presentation of new patrol cars and equipment for the Federal Police in Buenos Aires March 14, 2011. From affluent suburbs to the slums next door, residents live with burglar alarms, iron window grates and a growing fear of violent crime in the urban sprawl that fringes Argentina's capital. Argentines used to be proud of their country's reputation for safety in a notoriously violent region, but things have changed dramatically. Picture taken March 14, 2011. REUTERS/Enrique Marcarian (ARGENTINA - Tags: CIVIL UNREST CRIME LAW POLITICS ELECTIONS IMAGES OF THE DAY) 

Argentine President Cristina Fernandez de Kirchner sits in a fire-fighting vehicle during the presentation of new patrol cars and equipment for the Federal Police in Buenos Aires March 14, 2011. From affluent suburbs to the slums next door, residents live with burglar alarms, iron window grates and a growing fear of violent crime in the urban sprawl that fringes Argentina's capital. Argentines used to be proud of their country's reputation for safety in a notoriously violent region, but things have changed dramatically. Picture taken March 14, 2011. REUTERS/Enrique Marcarian (ARGENTINA - Tags: CIVIL UNREST CRIME LAW POLITICS ELECTIONS) 

Argentine President Cristina Fernandez de Kirchner (C) heads the presentation of new patrol cars and equipment for the Federal Police alongside Chief Police Enrique Capdevila (R), Superintedent Juan Martinez (L) and Security Minister Nilda Garre (R back) in Buenos Aires March 14, 2011. From affluent suburbs to the slums next door, residents live with burglar alarms, iron window grates and a growing fear of violent crime in the urban sprawl that fringes Argentina's capital. Argentines used to be proud of their country's reputation for safety in a notoriously violent region, but things have changed dramatically. Picture taken March 14, 2011. REUTERS/Enrique Marcarian (ARGENTINA - Tags: CIVIL UNREST CRIME LAW POLITICS ELECTIONS) 

Argentine President Cristina Fernandez de Kirchner heads the presentation of new patrol cars and equipment for the Federal Police in Buenos Aires March 14, 2011. From affluent suburbs to the slums next door, residents live with burglar alarms, iron window grates and a growing fear of violent crime in the urban sprawl that fringes Argentina's capital. Argentines used to be proud of their country's reputation for safety in a notoriously violent region, but things have changed dramatically. Picture taken March 14, 2011. REUTERS/Enrique Marcarian (ARGENTINA - Tags: CIVIL UNREST CRIME LAW POLITICS ELECTIONS) 

Police officers stand in front of the Government House after the presentation of new patrol cars and equipment for the Federal Police in Buenos Aires March 14, 2011. From affluent suburbs to the slums next door, residents live with burglar alarms, iron window grates and a growing fear of violent crime in the urban sprawl that fringes Argentina's capital. Argentines used to be proud of their country's reputation for safety in a notoriously violent region, but things have changed dramatically. Picture taken March 14, 2011. REUTERS/Enrique Marcarian (ARGENTINA - Tags: CIVIL UNREST CRIME LAW POLITICS) 

Former Paramount Pictures chief Sherry Lansing (R) and her husband director William Friedkin are shown at a premiere in Hollywood in this June 27, 2005 file photograph. Lansing and her Oscar-winning director husband sued Tyco's alarm company, ADT Security Services, saying burglars have been targeting homes in the Los Angeles suburb of Bel-Air because of the company's slow response. REUTERS/Mario Anzuoni/Files (UNITED STATES) 

An infrared image is seen on a monitor in a booth showing off a burglar alarm system at the 2007 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 9, 2007. REUTERS/Rick Wilking (UNITED STATES)