Because of the following:
"Radical environmentalists: you are damaging the planet with your efforts to lock up safer drilling areas. There’s nothing clean and green about your misguided, nonsensical radicalism, and Americans are on to you as we question your true motives."

The preceding is a fine example of the abuse we must suffer in this wonderful country for allowing Freedom of Speech
With all the calculated buffoonery of Limbaugh, Savage, Beck et.al, Ms. Palin has added another quality to the mix. Outright stupidity.
Please define "Americans"
If you disagree with MS. Palin, are you not considererd American?
Are there really any safe driiling areas? Let's ask BP.

You are a megalomaniacal, venal, cretinous, harpy, who would make Joe McCarthy proud, & is scaring the bejesus out of me.
I am asking you Sarah Palin. Will you Shut Up.