A Bangladeshi Muslim shouts slogans during a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Hefazat-e-Islam top leaders sit on a stage during a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi Muslim activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Hefazat-e-Islam top leaders sit on a stage during a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi Muslim activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi Muslim activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi Muslim activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi Muslim activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi Muslim activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

A Bangladeshi Muslim shouts slogans during a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

People carry an injured man by rickshaw during a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

A Muslim holds Bangladeshi flag during a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Police stand guard in a street during a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi Muslim activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)

Bangladeshi Muslim activists attend a grand rally at Motijheel area in Dhaka, Bangladesh, April 6, 2013. Tens of thousands of Islamists under the banner of Hefazat-e-Islam from across Bangladesh poured into the key commercial hub of the capital city to join a grand rally, demanding action against the "atheists and blasphemous bloggers" of the Bangladesh's Shahbag movement. (Xinhua/Shariful Islam)