By Dialogo March 02, 2011 Colombia, Mexico, and the United States are moving forward on a joint operation directed toward “cutting the lines of communication” between drug-trafficking groups and focused especially on the fugitive head of the Mexican Sinaloa cartel, Joaquín Guzmán, alias El Chapo, the Colombian police revealed on 28 February. The operation has enabled the identification and inclusion on the so-called ‘Clinton List’ (the U.S. Office of Foreign Assets Control) of forty-five companies in Mexico, Ecuador, Panama, Spain, the United States, and Colombia. The trinational operation began the last week in February and has made it possible to issue three arrest warrants for purposes of extradition for Guzmán’s liaisons in Colombia, the commander of the Colombian police, Gen. Oscar Naranjo, announced at a press conference. According to Naranjo, the operation has enabled the detention of more than sixty individuals, including Sergio Antonio Mora, alias El Toto, a leader of the Mexican Los Zetas cartel who is allegedly responsible, he said, for the death of Jaime Zapata, a U.S. Customs and Immigration Enforcement agent. With regard to Colombia, Naranjo indicated that through Operation Mercury, Interpol has issued an international arrest notice for the brothers Jorge Milton, Dolly de Jesús, and Hildebrando Alexander Cifuentes Villa, who are sought for extradition by the United States on drug-trafficking and money-laundering charges. The operation’s second phase is focused on seeking and locating the members of the support network of the Sinaloa cartel boss, for whom the United States is offering a thirty-million-dollar reward, the Colombian police commander indicated.