Question: How much money is offered by the U.S. government for information that leads to the arrest and/or conviction of the head of the cartel that is currently fighting the Knights Templar Cartel and Los Zetas for control of the city of Guadalajara?
Sentence (from "2012 Nuevo Laredo massacres"): That year is a convenient historical marker because that's when Felipe Calderón took office and carried out an aggressive approach against the cartels.
Relevant evidence: No