An 18-year old teenager was arrested in  Greece for allegedly hacking into websites and systems belonging to the  Interpol, the Pentagon, the FBI and the NSA back in 2008 and 2009.   The  teenager was taken into custody by police officers from his home in  Agios Dimitrios, one of Athens' working-class districts, where he was  living with his mother.                             The teenager will appear in court this week. If found guilty of all charges, he faces a prison sentence of at least five years.     Police officers executed a search warrant on the premise and  seized nearly 8,000 euros, $300, laptops, external drives and a router.   According  to Manolis Sfakianakis, head of the Department of Electronic Crime of  the Attica's Security Division, the teenager, known online as  "nsplitter," executed the attacks from his home computer.In  February 2008, at the age o...