For military and intelligence communities, outer space has become a highground, hide-and-seek arena -- a kind of "now you see me, now you don’t" espionage playing field. Over the decades, spying from space has always earned super-secret status. They are the black projects, fulfilling dark tasks and often bankrolled by blank check.However last month, several U.S. senators openly blew the whistle on a mystery spy satellite program, critical of its high cost while calling to question its utility in today’s post-9/11 world.One lawmaker, Jay D. Rockefeller (D-WV), the vice chairman of the Senate intelligence committee, openly criticized the program on...