A major US policy change began with one migrant's arrival in Mexico

An asylum-seeker from Honduras returns to Mexico from the United States while his case is processed by US authorities.

Tijuana, Mexico (CNN)The man held a backpack in one hand and a folder in the other.

Reporters swarmed around him as Mexican immigration officials whisked him into a van and drove away.
The chaotic scene of one Honduran migrant stepping foot on Mexican soil Tuesday marked the beginning of a major change in US policy.
    US immigration authorities detail so-called return-to-Mexico guidance for migrants