Human rights groups accuse Venezuelan leaders of trying to suppress anti-government protests

A woman with her mouth covered stands before a line of National Bolivarian Police preventing protesters from reaching the national intelligence agency in Caracas, Venezuela, Tuesday, Feb. 11, 2014. Her sign reads in Spanish "Freedom of expression. It's yours. Defend it." As newspapers have been beset for years by currency controls that make it difficult to import supplies, the situation has turned critical as reserves of newsprint have fallen to an all-time low, according to Venezuelan Press Block, which represents the nation's broadsheets. (AP Photo/Alejandro Cegarra) (The Associated Press)

A newspaper worker holds up the cover of a newsprint reel that reads in Spanish "Without paper there's no newspaper. Free press" and images of Venezuelan and U.S. currency in Caracas, Venezuela, Tuesday, Feb. 11, 2014. As newspapers have been beset for years by currency controls that make it difficult to import supplies, the situation has turned critical as reserves of newsprint have fallen to an all-time low, according to Venezuelan Press Block, which represents the nation's broadsheets. (AP Photo/Alejandro Cegarra) (The Associated Press)

A protester holds a sign that reads in Spanish "Paper equals employment. No to unemployment. El Impulso without paper," referring to the newspaper Impulso in Lara state, in Caracas, Venezuela, Tuesday, Feb. 11, 2014. As newspapers have been beset for years by currency controls that make it difficult to import supplies, the situation has turned critical as reserves of newsprint have fallen to an all-time low, according to Venezuelan Press Block, which represents the nation's broadsheets. (AP Photo/Alejandro Cegarra) (The Associated Press)