How does the FBI decide who goes on the no-fly list?
That’s the question at the center of a lawsuit by six men who were placed on the no-fly list, The Oregonian reports. 
Their lawyers are asking a judge to review how the federal government determines who is placed on the list and whether that determination aligns with threats to commercial airlines or national security.
The government “offers no evidence whatsoever about the accuracy of their predictive model, any scientific basis or methodology that might justify it, or the extent to which it might result in errors,” the lawyers argue.
The Justice Department in late May said the determination to place people on the no-fly list is based on “reasonable suspicion” that they pose terrorism threats.
“The government has taken concrete steps to balance the liberty of suspected terrorists with the serious national security concerns protected by the No-Fly List,” they wrote.