>And even if it did, radar is not magic. If the plane is at the bottom of a murky lake, then no amount of radar or satellite imagery is going to find it. The p

>And even if it did, radar is not magic. If the plane is at the bottom of a murky lake, then no amount of radar or satellite imagery is going to find it. The purpose of the radar would not be to see the plane at the bottom of a lake, but to provide a flight path after the ejection. If they had radar coverage, they should be able to see either where it ejected with an unstable flight path that put it within a fairly small circle of the ejection or on a stable flight path that gives them a more or less straight line to search along.