Amer el-Azizi, an al-Qaeda operative active in Spain, escapes a round-up of suspected al-Qaeda operatives by fleeing the country two weeks before arrests start to be made, even though he is under surveillance. [Wall Street Journal, 3/19/2004; Wall Street Journal, 4/7/2004; Los Angeles Times, 4/29/2004] El-Azizi, who had previously been arrested and released twice (see October 10, 2000), returns to Spain shortly after this and falls under police surveillance, but his arrest is frustrated by Spanish intelligence (see Shortly After November 21, 2001). He goes on to play a role in the Madrid train bombings (see Before March 11, 2004 and 7:37-7:42 a.m., March 11, 2004).