It would be funny if it wasn't so creepy. An author or journalist can write anything he wants about the United States -- or, in fact, about any foreign country -- without causing legions of critics to question the propriety of his doing so. That is, unless the subject of the author's work is Israel.
Think about it. Books have accused FDR of having advance knowledge of Pearl Harbor while others argue that the U.S. government -- in the form of the FBI, CIA or even Vice President Lyndon Johnson -- had President Kennedy killed. In other words, books that accuse U.S. presidents and U.S. government agencies of high treason are okay. This is America, and authors, journalists and bloggers can write what they like. (So long as it isn't libelous.)
But Israel is in a class of its own. This is not to say that it is impossible to get a book critical of Israel's policies published without setting off a firestorm among virtually the entire "pro-Israel" establishment. That isn't quite true.