Do American border guards have .50 cal rifles for anti-vehicle use?

[LSLGuy]

Thread on that event here:

Crash in Niagara Falls (Wed November 22, 2023) [Rainbow Bridge car explosion]

FBI investigating ‘vehicle explosion’ at Rainbow Bridge on US-Canadian border | CNN the latest from cnn is that the car accelerated as it approached the bridge, went airborne and crashed into the secondary search area. and came apart in a spectacular way.

It starts out kinda schizo because the mods glued two threads together. After ~10 posts it settles down to sanity.