HAVANA - Cuba said on Sunday the United States continues to use social media to "subvert" the island's government and that the revelation this week of a US-created, Twitter-like service for Cuba was just one of several examples.The US government has admitted it created a social media network called ZunZuneo, which takes its name from Cuban slang for the tweet of a hummingbird. It was revealed in a report by the Associated Press, which said ZunZuneo snared cell phone users to build a network whose goals included mobilizing demonstrations.The program, built by the US Agency for International Development (USAID) using shell companies to hide US government involvement, went dark in 2012 due to a lack of funds.US officials confirmed it on Thursday, calling ZunZuneo a "democracy promotion" program that was neither "secret" nor "covert" under the US government's definitions of those terms.