Narco debilita a gobiernos de CA

According to Thomas M. Hernández, DEA's Chief Operations Officer, the incursion of Mexican cartels into Central America and the resulting territorial disputes against local gangs is the main reason behind the high levels of violence recently recorded in the region. Also, the presence of Mexican cartels in Central America has been critical in triggering higher levels of corruption and general political and social instability in the area. Mexican cartels, according to Hernández, have great interest in securing control of the Central America - Mexico corridor since, according to the DEA, 95% of all the cocaine that enters US territory travels this route before reaching US borders. Is it so?