Less harmful coercion

The police and military are tasked with coercing some people on behalf of others. Often, the coercion is unnecessarily harmful and/or dangerous. Some inventive engineering might be valuable:
* 1) The mortality of helicopter crashes is too high. It is possible to build in safety devices that would greatly reduce the mortality.
* 2) It seems that the technology for locating the source(s) of enemy fire could be improved greatly, so as to return fire much more quickly and accurately.
* 3) From reports of civil unrest, it is clear that methods of mob control are ineffective and unnecessarily harmful/lethal and could benefit from new technology.
* 4) In attempting to persuade a foreign government, there are too few options between economic sanctions and bombing. It is worth examining untried in-between options.
* 5) From the success of road-side bombs placed by terrorists, it is clear that aerial surveillance needs some new thinking and technology. Likewise, from the growing crime near the Mexican border.
* 6) A few years ago, a Russian submarine sank in deep water and all perished over the course of days. One can imagine numerous emergency measures that could have saved everyone on board had the relevant equipment been built into the vessel originally. Do our submarines have such equipment?
* 7) Car chases endanger uninvolved citizens. It should be possible to tag a fleeing car so a to apprehend it leisurely.  (This is now done)