One of the airline passengers who bit into a sandwich containing a one-inch needle earlier this week has now been put on antiretroviral drugs used for the treatment of HIV, and says the FBI is investigating the incidents aboard four Delta Air Lines flights as a criminal case. James Tonges said he was placed on the drug Truvada, which has recently been approved by the FDA, following the incident aboard a Delta flight from Amsterdam to Minneapolis-St. Paul. Half a dozen sewing needles have now been found in sandwiches on four separate Delta flights, and Tonges, who was sitting in...