Demonstrators hold placards and banners to protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

(131026) -- WASHINGTON D.C., Oct. 26, 2013 (Xinhua) -- Demonstrators hold placards and banners to protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

(131026) -- WASHINGTON D.C., Oct. 26, 2013 (Xinhua) -- Demonstrators hold a parachute with slogans to protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

A huge slogan board stands in front of the U.S. Capitol building during a protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

Demonstrators hold placards and banners to protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

Demonstrators hold placards and banners to protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

Demonstrators hold placards and banners to protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

A rock band performs for demonstrators during a protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

Demonstrators hold a parachute with slogans to protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)

A huge slogan board stands in front of the U.S. Capitol building during a protest against government surveillance in Washington D.C., capital of the United Sates, on Oct. 26, 2013. Hundreds gathered here on Saturday demanding the U.S. Congress to investigate the U.S. National Security Agency (NSA) mass surveillance programs, ban blanket surveillance of telephone and Internet activity, and pursue accountability for any officials who misled lawmakers and the American people. (Xinhua/Fang Zhe)