By Barbara Liston SANFORD, Florida (Reuters) - The final round of jury selection began in Florida on Wednesday in the trial of a former neighborhood watch volunteer, George Zimmerman, who is charged with the fatal shooting of an unarmed black teenager in February last year. Lawyers on both sides are working to whittle down a group of 40 potential jurors to form a panel of six and at least four alternates with the expectation that prosecutors and lawyers will deliver opening arguments on Monday. ...

By David Alexander WASHINGTON (Reuters) - The theft of sensitive design data by hackers targeting programs like the F-35 Joint Strike Fighter takes away a big U.S. advantage by allowing rivals to speed up development of their own stealth aircraft, a top Pentagon official said on Wednesday. Defense acquisitions chief Frank Kendall told a Senate hearing he was reasonably confident that classified information related to the development of the F-35 was well-protected. "But I'm not at all confident that our unclassified information is as well-protected," he said. ...

By Sarah Marsh and Alexandra Hudson BERLIN (Reuters) - Michelle Obama and her daughters threaded roses through the narrow slots of a Berlin Wall memorial on Wednesday, honoring those who died trying to cross the Cold War barrier at a site which holds special poignancy in the once divided city. Accompanied by Angela Merkel's husband Joachim Sauer, who like the German leader hails from the former East Germany, President Barack Obama's family toured the Bernauer Strasse memorial where desperate residents of East Berlin once tried to jump from their windows into the western half of the city. ...