control, descend to a certain altitude, head on the -- the highway in the sky that they are not supposed to be on, but that other planes are so you wouldn't stand out, then follow a zigzag course which potentially could distract people maybe if you were going to anticipate that people are later going to go back and look at your track and try to deduce what you're doing, they'd be confused by your zigzag pattern. it's not clear where this plane was heading. as soon as this person left -- if indeed any of this happened, but they left the area of radar coverage out over the indian ocean, then they could go directly to where they wanted to go. now, we've all seen the 2200-nautical miles circle that's been drawn from the last point of contact. it sort of encompasses india and does not include pakistan, iran, yemen, some of these places, but if more fuel was added, we don't know. the possibilities expand. >> just the great mystery of