A flash of light from an explosion erupts from a train carriage, at right, at Atocha railway station, Madrid, on March 11, 2004 in this image
made from security camera footage which was made available, Tuesday, Oct. 19, 2004. The image shows people in the foreground atop
an escalator leaving a crowded platform at Atocha railway station already shrouded in smoke from a previous explosion. 191 people
were killed in the March 11, 2004 Madrid, train bombings which have been blamed on Muslim militants linked to al-Qaida.
Orange flames erupt from a train carriage, at right, at Atocha railway station, Madrid, on March 11, 2004 in this image made from security
camera footage which was made available, Tuesday, Oct. 19, 2004. The image shows people in the foreground atop an escalator leaving
a crowded platform at Atocha railway station already shrouded in smoke from a previous explosion. 191 people were killed in the March
11, 2004 Madrid, train bombings which have been blamed on Muslim militants linked to al-Qaida.