US Supreme Court refuses to let Americans challenge FISA eavesdropping law. (VIDEO)

The US Supreme Court ruled on Tuesday that Americans cannot challenge a provision of the Foreign Intelligence Surveillance Act of 1978 in federal court.

Under amendments made to the bill in 2008, the government is allowed to warrantlessly eavesdrop on Americans' foreign communications, and although the Supreme Court ruled FISA couldn't be challenged, they didn't address the constitutionality of the legislation.

Ginger McCall, director of Open Government Program for EPIC, joins us to talk about some of the unanswered questions of the law.