Officer Safety: Border States and beyond. Improvised grenade use by DTOs. (This is not really “news” to anyone working along the border, but it’s still good information to have.) Over the last few years, it has become more commonplace to see military-type weaponry such as grenades and assault rifles utilized by Mexican drug trafficking organizations (DTOs). Increasingly, many of the reported hand grenade seizures in United States are illegal, improvised grenades destined for Mexico and the DTOs. These devices have become a weapon of choice for Mexican DTOs because they are cheap, the components are relatively easy to obtain and manufacture, are easily concealable, and can kill or injure large numbers of people indiscriminately. Reports have indicated that grenade attacks originated mostly in southern Mexico around the beginning of President Felipe Calderon’s presidency in 2006, and have steadily spread northward as the conflicts between rival DTO cartels, and Mexican government’s enforcement efforts have intensified in the northern Mexican Border States. Read more at PUBLIC INTELLIGENCE.