When has that happened in the US? Because it happened else where that doesn't mean it would/will happen here. What these LEO are doing in Arkansas are the equvalent of a DUI check point once again. You must have no grasp of what a TCP (Tactical Check Point) is. Not all cars end up being searched. It's a random screaning, and mostly asking people for intel (who,what,where,when,why type questions) Some of you are blowing a simple TCP up into, full blown Martial Law. Martial Law could always be enforced at some point of an emergency, and in that situation individuals will be detained (meaning you can be held for quite some time). It's not like the curfew/check points have spread all over the city, it is in a confined area. And once again, the COMMUNITY, law enforcement, judge and mayor all approved of this. So far it seems nobody has complained about their civil rights or rights in general being infringed upon. I'll say it is drastic in a way, and seems like it was a brain storm of some former military personell, but it works.
Now if this were a whole ENTIRE city, I would see wrong in that. They're targeting a small community inside of a city. Again not an entire city. TCP's are set up via intelligence, and facts. As I've read so far, the outcome has been quite successful. Hell you are the type of person that would cry wolf, if a Law Enforcement officer wasn't at your house in under 5 minutes to help you in time of need. The fact that they have a heavy LEO presence is quite impressive. If you need a snake to die, cut the head off.