The report outlined several ways the recordings could reveal Khamenei's location and health condition, ranging from acoustic signatures to the supreme leader's breathing patterns.

American and Israeli intelligence agencies are intensifying efforts to locate Iran's Supreme Leader Mojtaba Khamenei, who has mysteriously disappeared from public view for months.

Israeli and U.S. intelligence are relying on spies and leakers inside of Iran to determine whether the Islamic Republic’s new Supreme Leader survived the strike that killed his…