US F-22 jets join S. Korea war games, 'situation on knife's-edge'

The United States has sent F-22 stealth fighter jets, to participate in ongoing military drills with South Korea. Pyongyang earlier said it was in a 'state of war' with the South following the latest round of sanctions over its nuclear test two months ago. In turn Seoul warned that its ready to carry out a pre-emptive strike on its neighbour, in case of imminent attack. James Corbett, host of t ...