“U.S. F-22 fighter jets scrambled about 10 times last year — twice as often as in 2013 — to monitor and photograph Russian Tu-95 ‘Bear’ bombers and MiG-31 fighter jets that flew over the Bering Sea without communicating with U.S. air controllers or turning on radio transponders, which emit identifying signals.”
Source: Intent of Russian military aircraft near U.S. shores remains unclear – LA Times
