1.   The Mexican government reacted angrily, convening an urgent meeting of its border-based consular officials in San Antonio to discuss ways of protecting migrants.

2.   Yet the force, known in Spanish as the Grupo Beta, has in fact had the primary mission of protecting undocumented migrants from criminal attacks.

3.   Grupo Beta began as a border police force to protect migrants from abuses on their illegal journeys.

4.   It also strayed from its original intent and dedicated more time to pursuing migrant smugglers and carrying out investigations, taking away from its efforts to protect migrants.

5.   They will leave the pursuit of migrant smugglers to the federal police and concentrate instead on protecting migrants.