New help in shuttle probe

According to this Wired article, NASA is turning to highly sensitive recordings to try to discern what happened to the Space Shuttle Columbia. According to the article, "As parts of Columbia began to break off as the shuttle streaked across the West, the flight behaviour of the normally streamlined spacecraft would have changed. Those changes would have generated distinctly different patterns of sound waves compared to previous shuttle flights." This sounds like a good lead in finding out what happened to that space craft, and those seven astronauts.