Every step of the search for flight 370 has been closely watched. The month-long mission has been filled with hope, setbacks and challenges. With crews zeroing in on a smaller section of the Indian Ocean. CCTV’s Rui Chenggang spoke to Australian prime minister, Tony Abbott, whose country is leading the search efforts. He started by asking him just how narrow the search zone really is.

Interview with Australian Prime Minister Tony Abbott on Missing Flight

CCTV's Rui Chenggang spoke to Australian prime minister, Tony Abbott, whose country is leading the search efforts. He started by asking him just how narrow the search zone really is.