Watch the video at this site. It’s short. The first 35 seconds are key.

Cuban tries to get back to his point, but he misses the point. The inventor, Staff Sergeant Travis Alton, has presumably already shown that his device is better and cheaper than the one the U.S. Air Force has adopted. (Later in the 2-minute video the guy gets back to the merits of his device.) Cuban asks him why the military has adopted the much more expensive one. The guy answers succinctly, maybe a little too succinctly for Cuban. But he answers, with four devastating words, and anyone who knows anything about Pentagon procurement knows that it has a high probability of being a good answer.

One of the people who probably has some familiarity with Pentagon procurement is Heather Wilson, secretary of the Air Force. Watch her reaction in the video.

HT2 Glenn Reynolds.