For seven years, Thomas A. Drake was a senior executive at the nation's largest intelligence organization with an ambition to change its insular culture. He had access to classified programs that purported to help the National Security Agency tackle its toughest challenges. Today, he wears a blue T-shirt and answers questions about iPhones at an Apple store in the Washington area. He is awaiting trial in a criminal media leak case that could send him to prison for 35 years. In his years at the NSA, Drake grew disillusioned, then indignant, about what he saw as waste, mismanagement and a willingness to compromise Americans' privacy without enhancing security. He first tried the sanctioned methods -- going to his superiors, inspectors general, Congress. Finally, in frustration, he turned to the nuclear option": leaking to the media. Drake, 53, may pay a high price for going nuclear. In April he was indicted, accused of mishandling classified information and obstructing justice. His supporters consider him a patriotic whistleblower targeted by an Obama administration bent on sealing leaks and on having something to show for an investigation that spans two presidencies. What led Drake to this point, friends and others say, is a belief that his actions were justified if they forced such a powerful and secretive agency to be held accountable. "He tried to have his concerns heard and nobody really wanted to listen," said Nina Ginsberg, an attorney.