Also I actually have less of an issue with other people buying Gaiman's work. I have no love for the man and won't buy anything myself again, but if you buy something of his, the money goes to him, and stops there. Rowling directly funds bigotry; the money people spend on Harry Potter is in a direct pipeline to funding the suffering of innocent people.
At the very least, before everything happened with Gaiman, he was known for having positive philanthropic ventures. Even if you gave him money, a sizable portion went to him, another portion went on to better the world. I'd presume he still supports these trusts and charities too.
The pentagon knew Israel was about to attack, they said so themselves, but denied any support or involvement. This seems to a valid reason for the pizza party, just to track, observe and be ready for any unexpected counter response.
I am in the camp where I believe the USA hasn't actively been involved yet but fully intend to be in the coming days. We have a seen Israel do anything they weren't already capable of, and the massive shift of US jets, missiles and an aircraft carrier to the middle east has largely happened after the initial attack.