As far as I know, you can sue a government agency, with some restrictions, but you can rarely sue the people who made the decisions in question while working for said agency. It's worse if the agency is a military branch and the normal civilian safeguards do not apply.
It is Petrov Day again, partially thanks to Stanislaw Petrov.
http://lesswrong.com/lw/jq/926_is_petrov_day/