Protests in Iran are intensifying due to the country's struggling economy, putting pressure on its theocracy. Tehran is still dealing with the aftermath of a 12-day war with Israel in June, which included U.S. bombings of nuclear sites. Economic pressure increased in September with the return of U.N. sanctions, causing Iran's currency to plummet. Activists say demonstrations have spread to over 220 locations across 26 provinces, with at least 20 people killed and more than 990 arrested. The protests began with economic concerns but have grown to include anti-government sentiments. Iran's nuclear program and tense relations with the U.S. are adding to Tehran's challenges.