Iranians marched in fiery protests to demand Ayatollah Khamenei's resignation after officials shot down a commercial plane

Morteza Nikoubazl/NurPhoto via Getty Images Thousands of protestors flooded the streets of Tehran to demand the resignation of the country's leader, Ayatollah Ali Khamenei. Demonstrators had first turned up for a vigil for the 176 passengers who were killed when Iran shot down a Ukrainian commercial airliner. Fiery chants and marching triggered a response from the city's riot police, and videos on social media show tear gas launched at the crowds. Visit Business Insider's homepage for more stori...