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"I mean, defense contracting is a bit of a drag and there's tons of red tape"

Not to mention the tremendous moral hazard. I am unclear as to how anyone can function as a reasonable moral actor when they profit from war.

Calling it "defense" does not solve that problem.

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Generally I would expect direct fire weapons to have much less collateral damage than bombs.

Building a better bullet can save lives.

And of late someone has: guided .50BMG bullets which can adjust their flightpath to assuredly hit a target (which, one can presume, is being shot to prevent others from being killed). EXACTO .50-caliber demonstration: http://www.darpa.mil/NewsEvents/Releases/2014/07/10a.aspx

Plasma cannons don't kill people, people kill people, and we've already invented those.

Changes in topology kill people.

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