White House, Nuclear Weapon | featured news

The White House says the U.S. is fully capable of defending itself after a North Korean ballistic missile attack. White House spokesman Jay Carney was responding to the North's vow to launch a pre-emptive nuclear strike against the U.S. That threat came in retaliation for tough new U.N. sanctions against Pyongyang for its recent nuclear test.

The Senate on Friday resoundingly approved new sanctions on trade with Iran's energy, port, shipping and ship-building sectors, its latest effort to ratchet up economic pressure on Tehran over its nuclear program.

As the White House pushes for cuts in the U.S. nuclear arsenal, the Pentagon is developing a weapon to help fill the gap: missiles armed with conventional warheads that could strike anywhere in the world in less than an hour.