on the Iranian nuclear installations and probably a wider target zone."

This would result in a dramatic increase in attacks on U.S. forces in Iraq, attacks by proxy forces like Hezbollah, and an unknown reaction from the wobbly states of Afghanistan and Pakistan, where millions admire Iran's resistance to the Great Satan. "As disastrous as Iraq has been," says Mann, "an attack on Iran could engulf America in a war with the entire Muslim world."

Mann and Leverett believe that none of this had to be.

Flynt Lawrence Leverett grew up in Fort Worth and went to Texas Christian University. He spent the first nine years of his government career as a CIA analyst specializing in the Middle East. He voted for George Bush in 2000. On the day the assassinsof Al Qaeda flew two hijacked airplanes into the World Trade Center, Colin Powell summoned him to help plan the response. Five months later, Leverett landed a plum post on the National Security Council. When Condoleezza Rice discussed the Middle East with President Bush and Donald Rumsfeld, Leverett was the man standing behind her taking notes and whispering in her ear.

Today, he sits on the back deck of a house tucked into the curve of a leafy suburban street in McLean, Virginia, a forty-nine-year-old white American man wearing khakis and a white dress shirt and wire-rimmed glasses. Mann sits next to him, also wearing khakis. She's thirty-nine but looks much younger, with straight brown hair and a tomboy's open face. The polish on her toenails is pink. If