DP,
“are they fighting insurgents or downing russian migs, who knows….. Russians tracking where they are coming or going, yeah, they’re coming from the South, what is that going to prove?”

You don’t think the Russian monitor flight activity, know exactly where the various squadrons are based out of, and have people monitoring and reporting? I guarantee they do. They know a lot more about us than we do about them. And shutting down the tunnel at this point doesn’t stop anything, just makes it a little harder for them. The Russians can resupply by sea or air.

As far as no proof that it was the U.S., you’re wrong there, too. Missiles and bombs also leave evidence.