PARIS (AP) — Thousands of French police officers have held a demonstration outside parliament to press for a law that protects the protectors. The rally by security forces on Wednesday represented an unusual move for members of an institution that stresses duty and discretion. But police are feeling vulnerable to attacks, angry and useless. Two police officers were killed in recent weeks. The protest drew civilian supporters and morphed into what looked like a campaign stop for politicians ahead of regional elections next month and a presidential race next year, with security a top concern. Interior Minister Gerald Darmanin showed up at the start, squeezing through the crowd waving labor union flags.