An excellent article regarding same:
https://www.rt.com/op-ed/422967-anti-war-protest-us-vietnam/

Imagine the massive national news coverage and commentaries followed by who knows what if one individual took one dog to the center of a big public university campus, doused the canine with gasoline and lit it on fire?  Or if the same individual did the same thing with a big Israeli flag?  And yet when innocent human beings on the other side of the world are being blown up by U.S. manufactured armaments in one shape or another on a daily basis and some 3,000 unborn are being butchered at the abortion mills in America on a daily basis, that doesn't seem to merit much publicity.