I know that the politicians have to do SOMETHING, but this is not a good use of these troops.
However, simply allowing sworn law enforcement officers, certain former military Special Ops people, and a few other categories of people with the necessary traing and initiative to be armed on commercial aircraft could almost immediately put enough "acting Sky Marshals" on planes to cover every flight in the U.S., at least.
TM, ex navspecwar 0-3.