The Insider: Daily Terrorism Report

Apr. 27 -- The FBI has alerted law enforcement agencies nationwide to the danger that terrorists could be using stolen passports to move freely across borders and enter the United States, ABCNEWS reported in an exclusive report Monday. A recent classified FBI bulletin warns that stolen French passports "are of particular concern" because France is one of 27 countries whose citizens do not need visas to enter the United States for visits of 90 days or less. U.S. officials fear the passports may used by terrorists.

And a purported audio tape from the Saudi number one most wanted militant leader said al Qaeda would carry out more attacks against U.S. interests this year and urged Muslims to avoid American civilian and military sites. But the tape by Abdulaziz al Muqrin, which was posted on an Islamist web site which carries statements said to come from senior Qaeda and Taliban officials, said last week's suicide car bombing of a security building in the Saudi capital Riyadh was not the work of al Qaeda.

THE WAR ON TERROR

INVESTIGATIONS

U.S.Tools for TerroristsThousands of stolen blank passports may be in terrorists' hands. (ABCNEWS)

Saudi ArabiaPurported Qaeda Tape Vows Attacks On U.S. InterestsA purported audio tape from a senior Saudi al Qaeda leader said the militant group would carry out more attacks against U.S. interests this year and urged Muslims to avoid American civilian and military sites. (Reuters)

Band of Terrorists BesiegedFive terrorists who on April 13 killed an officer and his partner working for al Mujahedeen, a unit affiliated to the internal security forces, are still at large. (Arab News)

SpainArrest Warrants in Madrid BombingsAuthorities investigating the Madrid terrorist bombings issued international arrest warrants for six men accused of providing logistics and money for the attack, and announced the arrest of one of them, officials said Tuesday. (AP)

MoroccoAuthorities Investigating Explosives' TheftMoroccan authorities are investigating the theft of from a factory in the outskirts of the city of Satat, 80 km south of Casablanca. The investigation started after chemicals were found in the apartment of two wanted terror suspects who were arrested in the city of Barchid last week. The suspects, Salah El Din Al Ghabeesh and El Darbany, are believed to have been involved in the Casablanca bombings in May of last year. Al Hayat also reports that authorities have arrested more suspects in the city of Meknas and confiscated explosives and flyers. (Al Hayat)