US naval flotilla heading for North Korea....yes really

Last week, as tensions flared on the Korean peninsula, the Trump administration announced it was dispatching the U-S-S Carl Vinson to the Sea of Japan, to send a "powerful signal" to North Korea. In fact, the aircraft carrier and accompanying warships, were heading in the opposite direction, towards exercises with the Australian Navy, thousands of kilometres away in the Indian Ocean. Kathryn talks to Christopher P Cavas, Naval Warfare Correspondent for Defense News.