Breakthrough: acoustic sensor can detect humans hiding in metal cargo containers

MIT Technology Review reports that

Franklin Felber at Starmark, a scientific consulting company based in San Diego, has built and tested an acoustic sensor that is both powerful and sensitive enough to detect the breathing motion of an otherwise stationary human on the other side of a cargo container wall.

...Felber is optimistic. He says the device is “capable of remotely and nonintrusively scanning steel cargo containers for stowaways at a rate of two containers per minute.”

Read more here.