I'm sorry they were detained, but I'm with the PIC on this. Get them off the plane and let the FBI and whomever else wants to take a run at them to do so and keep the flight on time and ease any customer fears.
Fact is some Islamists come to kill us and how do you know which is which?
To heck with dignity, it's more important to ease the fears of paranoid white Americans?
BTW the flight did not leave on-time BECAUSE of a stupid passenger and the typical flight attendant over-reaction.