New lead, new challenges: How weather, deep water and confusion may factor in search for Malaysian jet

Summary: Satellite cameras recorded two objects about 1,400 miles off the coast of Perth, Australia, in the Southern Indian Ocean, raising the possibility that they may be part of the missing Malaysian Airlines jet. But even with a more targeted area to focus on, the challenges of locating the aircraft are daunting. Gwen Ifill learns more from Andy Pasztor of The Wall Street Journal.