Question Pointless News Today : Breaking News, Live Updates & Top Stories | Vimarsana

These conditions are far from ideal. to be most effective, it needs a starting appoint, a confirmed piece of wreckage from malaysia airlines 370. >> if they haven't found deb, is it pointless to use this? >> your question pointless is not a good description. it is very, very difficult if they have not found debris to even know where to start. >> pinger locater limitations, it's passive, michbs from the pinger. it doesn't send out signals to pick them up. obstructions like underwater hills or mountains can impede it. >> weather is a big factor. if the boat is doing this on the ocean waves, now ...

Locator, agree that these conditions are far from ideal. to be effective, it needs a starting point and a confirmed wreckage from flight 370. >> if they haven't found debris, is it pointless to use this? >> your question pointless, it's not a good description. it is very, very difficult if they have not found debris to even know where to start. >> reporter: the pinger locator's limitations, it's passive. it doesn't send out signals to pick them out. obstructions like underwater hills or mountains can impede it. >> weather is a big factor. if the boat is doing this on the ocean waves, now you'r...