Russian fighter jets shadowed U.S. predator drones on at least three separate occasions high above Syria since the start of Russia's air campaign last week, according to two U.S. officials briefed on this latest intelligence from the region. Meanwhile, U.S. Navy Captain Jeff Davis told reporters a U.S. aircraft flying over Syria had to be rerouted to avoid a Russian fighter jet at least once. "We have taken action to maintain safe separation," Davis said, adding that the U.S. aircraft "changed path a little bit." He did not disclose which type of U.S. aircraft was involved. U.S. officials tell Fox...