CNN New Day Saturday April 12, 2014 10:17:00
Only until then are you positive you have it. >> even then, experts say, sound in the ocean can play so many tricks on your ears. >> several people can look at a signal and see different things. because all theyre really recording is sound energy. >> false positives from fishing and research equipment left in the area. from debris and thermal conditions. from the vessel itself can also play tricks on the techs. phoenixs operators are good at weeding out false positives. they do it by carefully m...
Source: archive.org