The CIA begins “persistent” efforts to recruit German businessman Mamoun Darkazanli as an informant. Darkazanli knows 9/11 hijacker Mohamed Atta and the other members of the Hamburg al-Qaeda cell. US and German intelligence had previously opened investigations into Darkazanli in September 1998. Agents occasionally followed him, but Darkazanli obviously noticed the tail on him at least once. More costly and time-consuming electronic surveillance is not done however, and by the end of 1999, the investigation has produced little of value. German law does not allow foreign governments to have informants in Germany. So this month, Thomas Volz appears at the headquarters of the Hamburg state domestic intelligence agency, the LfV, responsible for tracking terrorists and domestic extremists. [Chicago Tribune, 11/17/2002; Stern, 8/13/2003] Volz’s business card identifies him as “consul of the United States of America” at the US consulate general in Hamburg, but he actually is an undercover CIA agent. [Der Spiegel (Hamburg), 12/12/2005] Volz tells them the CIA believes Darkazanli has knowledge of an unspecified terrorist plot and encourages that he be “turned” against his al-Qaeda comrades. A source later recalls he says, “Darkazanli knows a lot.” Efforts to recruit him will continue in the spring next year. The CIA has not admitted this interest in Darkazanli. [Chicago Tribune, 11/17/2002; Stern, 8/13/2003]