Thanks for that, may be i didn't put my question right, what i meant to ask was, is there any record or news of any Soviet aircraft or spy plane getting shot down while violating US airspace. It's no secret that both countries carried out recce flights over each others territory.
There are many types of these flights.
If physical evidences, such as troops movements or building locations, are needed, then it would be a photography mission. These flights can involve border violations, especially if the aircraft cannot fly high enough for the cameras to take effective angle shots. That is why the US built the SR-71 with its high altitude, borderline orbital, for these missions without crossing into hostile airspaces. If we did violate Soviet airspace, which everyone know such incursions are open 'secret', we would never admit it to conceal our true capabilities and the Soviets/Russians would never admit it for fear of appearing vulnerable.
If electromagnetic (EM) data are needed, then the mission is signals intelligence (SIGINT) and we do not need to violate borders for these signals. The presence of any unidentified aircraft, such as a SIGINT aircraft, is enough to be provocative of EM activities such as those coming from radars. SIGINT flights are both provocative and intelligence gathering.
If defense response data are needed, then the mission is simply provocative, such as the usual Soviet/Russian Bear bombers heading towards the Alaskan coasts. The Bear does not ID itself, we responded by sending up a pair of Eagles, and the Soviet aircrews record the times of activities by both sides. If there are no responses, it is unlikely that the Bear would actually fly into US airspace. May be such did happened. I do not presume to know of any. But actually flying into someone's sovereign airspace is extremely risky because once you crossed over the border, you could be shot down and all the data you gathered, photo or EM, are lost. Better to just simply get as close as you can, record the time and distance, then head for home.
So were any Soviet recon flights that actually violated US airspace and got shot down ? For real and not rumors ? We will just have to wait when both sides are willing to be honest.