Probably for quite a few reasons, the first of which would be cost.
The current method works very well, why change it if it aint broke?
Edit: As you noted before, reasearch started in the 70's. And it is not even a proven concept yet, no one has seen it put into real action. Do not think the U.S. Governemtn hasn't tried the weapon out yet, they have.
Have you seen all of the complicated moving parts it has? Hardly Joe proof.
The current method works very well, why change it if it aint broke?
Edit: As you noted before, reasearch started in the 70's. And it is not even a proven concept yet, no one has seen it put into real action. Do not think the U.S. Governemtn hasn't tried the weapon out yet, they have.
Have you seen all of the complicated moving parts it has? Hardly Joe proof.