Hmmm: Khamenei's illness may signal power struggle in Iran

Concerns are growing in Iran about the health of Ayatollah Ali Khamenei, the country’s Supreme Leader, amid fears of a power vacuum at a critical moment for the Islamic Republic.

Ayatollah Khamenei, 74, Iran’s most powerful man, has not been seen in public for three weeks. Reports suggest that he has had a relapse of a chronic illness.