The Oscars' most politically charged moments

Sometimes, a simple “thank you” isn’t enough at the Oscars.
From Sacheen Littlefeather to Michael Moore, winners and presenters gracing the stage on Hollywood’s biggest night have often injected their own political rhetoric into the three-hour-plus telecast.
It’s no wonder that with more than 40 million watching in the United States last year and hundreds million more around the world, many can’t turn down that chance.
And at Sunday’s 8