According to Ms. Hebshi’s Blog: “…someone on the plane had reported that the three of us in row 12 were conducting suspicious activity.” and referring to a statement by an agent to her “It’s 9/11 and people are seeing ghosts. They are seeing things that aren’t there.” He said they had to act on a report of suspicious behavior, and this is what the reaction looks like.”

Finally according to the suit filed: “…some flight attendants and passengers noticed that the two men
seated in Ms. Hebshi’s row were acting in a way that they considered to be suspicious.
Specifically, these flight attendants and passengers alleged that the men went to the restroom
around the same time and each spent ten, fifteen or twenty minutes there. Some passengers and
flight attendants also reported that the men were standing in the aisle for long periods.”

I have seen nothing from the FBI or other agencies.

In other words what was the basis for determining probable cause for the detention?