>> yes, angus houston, head of the coordination team, talked about the search, i want you to take a listen on what he had to say. >> today i can report some further encouraging information regarding the search for missing flight mh-370. on monday, i advised that the towed pinger locater deployed by the ocean shield had detected emissions from two black boxes on two separate occasions. i can now tell you that ocean shield has been able to re-acquire the signals on two more occasions. late yesterday afternoon and late last night perth time. the detection yesterday afternoon was held for approximately five minutes and 32 seconds. the detection late last night