- - Wednesday, April 9, 2014

For 30 days, 26 nations have been scouring the surface of the Indian Ocean with airplanes and ships, and even a few satellites, looking in vain for a debris field from Malaysian Airlines Flight 370 (“Inside China: Does active role of Chinese in search for missing Malaysia jet have a dual purpose?” Web, March 27).

The search has been limited to daylight and favorable weather, and plagued by false alarms caused by the Indian Ocean “garbage patch.”

A nuclear submarine cruising at depth could search wide areas and locate black box pings 24 hours a day, seven days a week — without needing daylight or good weather. The modern listening technology used routinely by submarines easily overcomes the clutter of ocean noises.

As a submarine veteran, I find it hard to believe that not one submariner in any navy with nukes has made this suggestion. Their leaders may have good vision, but they are apparently hard of hearing.

GEORGE F. STEEG

Potomac Falls