http://www.washingtontimes.com/national/20070316-123415-2121r.htm

“”If reporting suspicious behavior becomes actionable, that could have a dangerous precedent for reporting other crimes, like child abuse and abductions,” Mr. Behrens said. “It's certainly a form of intimidation to go after passengers.“
  The lawsuit primarily targets US Airways and the Minneapolis-St. Paul Metropolitan Airports Commission, but suing passengers who report suspicious behavior “sends a terrible message if we are at all concerned about the threat of terrorism,” said Walter Olson, a senior fellow at the Manhattan Institute and author of several books on litigation in the U.S.
  “The implications are that if you appear to just buzz about what you perceive to be a security threat then you are a legal wrongdoer and responsible for damages, even if all you did was notify the authorities. And that would have a tremendous chilling effect, win or lose. “

“Defendants 'John Does' were passengers … who contacted U.S. Airways to report the alleged 'suspicious' behavior of Plaintiffs' performing their prayer at the airport terminal.”

You also failed to mention that the suit includes the pilot, the flight attendants, and the desk agents.

http://www.washingtontimes.com/national/20070316-123415-2121r.htm

“”If reporting suspicious behavior becomes actionable, that could have a dangerous precedent for reporting other crimes, like child abuse and abductions,” Mr. Behrens said. “It’s certainly a form of intimidation to go after passengers.“
  The lawsuit primarily targets US Airways and the Minneapolis-St. Paul Metropolitan Airports Commission, but suing passengers who report suspicious behavior “sends a terrible message if we are at all concerned about the threat of terrorism,” said Walter Olson, a senior fellow at the Manhattan Institute and author of several books on litigation in the U.S.
  “The implications are that if you appear to just buzz about what you perceive to be a security threat then you are a legal wrongdoer and responsible for damages, even if all you did was notify the authorities. And that would have a tremendous chilling effect, win or lose. “

“Defendants ‘John Does’ were passengers … who contacted U.S. Airways to report the alleged ‘suspicious’ behavior of Plaintiffs’ performing their prayer at the airport terminal.”

You also failed to mention that the suit includes the pilot, the flight attendants, and the desk agents.