This has been going on since the 70's.
Really, I did not know that.
Politics make strange bedfellows... But wouldn't exactly expect Indians to cozy up to any governmental type organizations.
It's been one of the tactics of the American Indian Movement, ( AKA : Assholes In Moccasins ) since the 70's, it was part of the strategy behind the protests at Plymouth Rock on Thanksgiving, as well as the takeovers of Alcatraz and Wounded Knee.
The objective, as with Palestinian aircraft highjacking, was to draw international attention and put outside political pressure on the US Govt.