French authorities worry about a possible attack by militant Islamists during the 1998 World Cup in France. This “huge security headache” is primarily related to Algerian militants who previously bombed the Paris metro in 1995 (see July-October 1995) and are now “living untroubled lives in London.” Authors Sean O’Neill and Daniel McGrory will write: “France was on edge. Such was her anxiety about the World Cup that she demanded cooperation from her European neighbours. Where she deemed that collaboration was lacking, or less than enthusiastic, she was sending her own teams of agents abroad to carry out the task of gathering intelligence on Islamist militants.” In this context the French authorities are most concerned about London-based radical imam Abu Hamza al-Masri, a spiritual leader for the Algerians (see Spring 1998). One of the people plotting attacks at the World Cup, an Algerian, is arrested in Belgium in March 1998, and this leads to further arrests across Europe, although the actual nature of the plot is not known definitively. [O’Neill and McGrory, 2006, pp. 123-4, 128]