Why Obama Should Let Iran's 'Red-State' Regime Die on Its Own

As a million more protestors march on Tehran today, the days of Ayatollah "Falwell" Khamenei and President "Gingrich" Ahmadinejad are numbered. And that means Obama should keep talking to Twitter more than trying to manipulate the Middle East's dynamics, argues a leading foreign-policy expert. These guys could still go nuclear, after all.

By Thomas P.M. Barnett