It's beginning, as described by Vault-Co in 1994. We posted detailed descriptions of the collapse and how it would occur on the original Vault-Co site in late 1998.
It will begin with the southwestern border of America becoming indistinguishable from the chaos and violence that reigns in Mexico all the time. Loca law enforcement will be paralyzed and helpless because they do not have the resources for this kind of war - which requires an army to fight what is effectively an invasion by a foreign country.
It's really started now. It won't get better. Like the Western frontier of Imperial Rome, expect this degradation of their territorial borders to proceed on a daily basis until the establishment of Aztlan, the new Mexican nation on the former soil of the United States.
War comes to Tucson
"It's like living in a war zone"
Violence in Mexico now straddles the border
Mad Max style apocalyptic anarchy at the U.S. border with Mexico