US leaker Snowden is a traitor, says John Boehner

The Speaker of the US House of Representatives has described Edward Snowden, who leaked information about America's mass surveillance programme, as a traitor who has put lives at risk.

The former CIA worker was last seen in Hong Kong but is now in hiding.

The American Civil Liberties Union has filed a lawsuit against the US government, saying it has violated the right to freedom of speech and privacy.

David Willis reports from Washington.