Pacompany Tt News Today

Investigation where black boxes were found without debris. >> reporter: indeed, questions about the fleeting signals the chinese picked up remain. for instance, how could a relatively rudimentary detector, this one cost no more than $16,000, designed for use in shallow water pick up pulses potentially miles deep? its technically possible, but not likely says the pacompany tt makes the detector. >> it would be right at the edge of the detection limit of that system. >> reporter: the signals are t...