So then, a few followers of bearded man with flip-flops living in a cave a Pakistani cave wish to "borrow" an aircraft in flight. Get a largish stooge in C-Class to have few glasses of pop too many and then take on the cabin crew - a bit of pushing and few insults might help. Now wait for the TSA's finest to come to the cabin crew's aid. I never thought it would be that simple. Admittedly you may have to take on a few passengers, but the two major obstacles have been identified so they can now be neutralised.
And as for the US Govt. arranging for their repatriation, that really is a bit beyond this site. But to skip a (friendly) country when you know full well that a country's legal system required their presence, is not on. It is arrogance and xenophobia beyond words. This is another example as to why the USA has such a poor reputation Worldwide. This also makes it more likely for US citizens to be locked up as soon as there is any whiff of judicial action.
PM