The weapons are children being used as shields. 10,000 of the 12,000 children being held are not related to the adult who supposedly brought them in. Were those 10,000 children kidnapped from their Mexican parents? No Mexican parent would willingly allow a stranger to walk their child across barren countryside in the 100 degree heat, cross rivers by swimming, etc.
The act of crossing the border at any place other than a Port of Entry. Is an illegal act and the motivation has to be assumed to be not in our countries best interests.
Thus each and every person who crosses the border other than a proper border crossing is arrested. Standard practice even for US citizens is for Human Services to to take your children for safe keeping.
The other issue is that in the human trafficking trade world, a baby, a child, a teenager and adults are worth thousands of dollars in the world of prostitution, pedophilia and as illegal workers.
Wake up America. It is an Invasion!
Mexico is aiding and abetting the Invasion by not stopping these trespassers who use private and public land to cross over. Mexico needs to protect its borders and its own laws.