China acted as a mediator in the nuclear stand-off, but two rounds of six-party talks have failed to resolve the issue.

ECONOMIST: More violence in Iraq

One rumor making the rounds was that Mitnick could launch nuclear missiles merely by whistling into a telephone.

FORBES: The demonizing of a hacker

The recent problems have prompted new rounds of warnings from anti-nuclear groups.

WSJ: Nuclear Issues Put Focus on Japan Regulators

For years there have been rounds of talks trying to resolve Iran's nuclear question.

BBC: The man who turned Iran nuclear

Since 2006, there have been four rounds of sanctions aimed at forcing Iran to halt a nuclear program that the U.S., the European Union, and Israel believe is aimed at acquiring nuclear weapons.

CENTERFORSECURITYPOLICY: The growing concern of Brazil & Iran

Iran's oil-based economy has been hit by four rounds of UN sanctions, as well as those from individual countries over its controversial nuclear programme.

BBC: Motorists at Iran petrol station