Wait, we're all worked up over this letter for nothing. I misread and thought the OP was saying that McDs supports "terrorists." Instead, McDs supports a "Terriost," which is an entirely other matter.

From Dictionary.com:

"Terriost: ter-ee-ohst (n): Low-level-education trolls who post nonsensical, poorly thought out, poorly written letters by typing them in between rounds of crushing empty beer cans against their forehead and shooting rats."