fix articles 444515, border protection offices
Mexico's President Calderón labeled Mexican drug cartels as cowards (tags)
Hundreds of Mexicans, some woman carrying small children, blocked roads and bridges in Mexican cities bordering the United States from the Gulf of Mexico (Matamoros) to the Pacific Ocean (Tijuana) and protested by marching in the northern city of Monterrey in a series of demonstrations that police say are organized and funded by Mexican drug cartels.