Oops, missed

War History Online has an article by Joris Nieuwint about the Blackbird:

In the 1960s, the Air Force developed a plane that could travel more than three times as fast as the sound produced by its own engines. The SR-71 Blackbird’s incredible speed enabled it to gather intelligence in a matter of seconds while streaking across unfriendly skies at over Mach 3 at eighty thousand feet.
On the off-chance that an enemy tried to shoot it down with a missile, all the Blackbird had to do was speed up and outrun it, as it was far faster than any missile that could be fired at it.
The SR-71 served with the Air Force from 1964 to 1998. A total of thirty-two aircraft were built; twelve were lost in accidents, but none to enemy action. This was not for lack of trying; over the course of its reconnaissance missions during the Vietnam War, the North Vietnamese fired approximately eight hundred SAMs at SR-71s, none of which managed to score a hit. But North Vietnam wasn’t the only country to try and shoot down a blackbird, there were four other countries who tried, too. Check out the video above to find out more!

Rico says it must've really pissed them all off to miss...