"The United States had a long bipartisan tradition of negotiating with even its worst enemies, from John Kennedy--'Let us never negotiate out of fear. But let us never fear to negotiate"--to Richard Nixon's opening with China, to Ronald Reagan's famous 'walk in the woods' with MIkhail Gorbachev. Obama's position was firmly in line with longstanding diplomatic practice. George W. Bush's post-9/11 policy--'You are either for us or against us'--was the exception, and a bad one. It removed subtlety from international affairs."