Diplomatic cable leak upsets the US

The whistleblower website WikiLeaks has released scores of electronic cables sent between headquarters in Washington and embassies and consulates around the world.

The leaked documents include confidential views about major allies and partners, including worries about security at a Pakistan nuclear facility and concerns about alleged links between the Russian government and the mafia.

The White House has condemned media's publication of the cables, saying it puts diplomats and intelligence professionals at risk.

Al Jazeera's John Terrett reports from Washington.