Keep in mind that the situation with so-called "Homeland Security" can and does change at the drop of a hat anymore.... what was fine 6 months ago is not allowed anymore. You can't blame the artist for something the government has rules about..... it wasn't that long ago when Rob Halford had to cancel a US solo tour because of "paperwork".
My statement wasn't against VP. I was referring to the airport they flew out of. The band seemed to have everything they thought they'd need and assuming all other bands had pretty much the exact same paperwork, what was the issue with VP? You'd think any airports making international flights into the US would check all papers to make sure they have everything before getting into the US. It's not like they suddenly gained all the equipment they were flying with once in Detroit for them to wonder if they were going for business or pleasure.