Iran has charged a prominent American scholar of trying to topple the Iranian government. The scholar, Haleh Esfandiari, was imprisoned in Iran on May 8 after more than four months under virtual house arrest. She is the director of the Middle East program at the Woodrow Wilson International Center for Scholars. The Wilson Center said the charges against Esfandiari had no foundation. Esfandiari is a dual U.S. and Iranian citizen. She went to Iran last year to take care of her 93-year-old mother. Her arrest has been widely condemned in the academic world.