CNN was founded in 1980 and was the first 24-hour cable news network in the US. It gained a reputation for providing live breaking news coverage of major events like the Challenger explosion, Gulf War, and 9/11 attacks. This "CNN Effect" influenced public opinion and government diplomacy. However, CNN's definition of "breaking news" has expanded and its exclusivity in live coverage has declined with new competitors. CNN faced criticism over its lack of on-the-ground coverage of the 2009 Iran elections and 2010 Gulf oil spill. Its iReport citizen journalism division now helps provide breaking news but CNN has seen ratings declines in recent years.