G. Daniel S. Marciniak

A US Navy underwater drone sent to search for a missing Malaysian jetliner on the floor of the Indian Ocean could take up to two months to scour a 600 sq km area where the plane is believed to have sunk, US search authorities said on Tuesday.

A US Navy underwater drone sent to search for a missing Malaysian jetliner on the floor of the Indian Ocean could take up to two months to scour a 600 sq km area where the plane is believed to have sunk, US search authorities said on Tuesday.