The Council on American-Islamic Relations (CAIR) called Tuesday for an investigation into the behavior of airline staff and airport security in the removal of six Muslim scholars from a US Airways flight a day earlier. A passenger raised concerns about the imams - three of whom said their normal evening prayers in the airport terminal before boarding the Phoenix-bound plane, according to one - through a note passed to a flight attendant, according to Andrea Rader, a spokeswoman for US Airways.