McCain's politics of fear:

Republican presidential candidate John McCain said on Friday he fears that al Qaeda or another extremist group might attempt spectacular attacks in Iraq to try to tilt the U.S. election against him.

McCain, at a town hall meeting in this Philadelphia suburb, was asked if he had concerns that anti-American militants in Iraq might ratchet up their activities in Iraq to try to increase casualties in September or October and tip the November election against him.

"Yes, I worry about it," McCain said. "And I know they pay attention because of the intercepts we have of their communications ...