"What did Otto think?"
Their grant is to help figure out how to get a nuke into a cave with people hiding in it. It is not something abstract like making an engine go faster.
Hiding under the banner of "oh yeah but maybe research will have useful offshoots" is cowardly and disingenuous.
There are many people who post on these forums that have the skills needed to work on one of these grants, but instead choose to research something more ethical with their skills. These people I admire.