CNN The Situation Room April 7, 2014 21:18:00
>> actually, no. we are probably, if anything, more cautious. by this time, the signal we acquired, it's been almost a day and a half. so we had a solid two hours of detection time earlier. actually, two hours on one course and then we turned around and what you want to do is turn around on a resip pro cal course. and that's how you get a line of bearing. and if they cross, you can get a location of the object. we had two hours of coverage time on one leg as we were towing the tpl and then we turned around and had about 15 more minutes of coverage which was encouraging and then it dropped off....
Source: archive.org