Thomas Friedman: "I have no problem with any of the substantive criticism of President Obama from the right or left. But something very dangerous is happening. Criticism from the far right has begun tipping over into delegitimation and creating the same kind of climate here that existed in Israel on the eve of the Rabin assassination... Even if you are not worried that someone might draw from these vitriolic attacks a license to try to hurt the president, you have to be worried about what is happening to American politics more broadly."