In a SPIEGEL interview, Edward Snowden's lawyer, Jesselyn Radack, and former NSA contractor Thomas Drake discuss the reasons behind the American spying agency's obssession with collecting data.

For more than a year now, the world has closely followed revelationsdisclosed by former American intelligence worker Edward Snowden. The documents from the whistleblower's archive have fueled an at times fierce debate over the sense and legality of the National Security Agency's (NSA) sheer greed for data. more...