A known sinkhole in Louisiana has become active again, but instead of swallowing people, cars or a resort, as we’ve seen sinkholes do in recent months, this one took down trees. Something about this video just looks like the start to a nightmare.  Sinkholes in Florida and all over are causing big problems.  Something to note though, that most of this could have been prevented, because this 24 acre issue is man made.  Part of a huge salt mine underneath the ground.