Are concerns of who walks among the hundreds of families seeking a better life in the caravan.
A former f-b-i agent joined the caravan last week.
He spoke with channel 5's valerie gonzalez about what he saw.
The president alleged a potential threat exists among the central americans headed to the border.
The threats are the same many are attempting to flee.gangs and criminals.
From the point of view of one former f-b-i agent... that threats walks with them.and more could be waiting for them closer to the border.
We spoke with art fontes, a former f- b-i agent.
He was in southern mexico last week.
Fontes said most of the caravan participants were families.
He observed some people who had tattoos usually associated with gang participation.
He did not see any immigrants who appeared to be from other countries.
The group tends to be traveling together.
Fontes said he observed they had some assistance from the mexican government.
"in talking to some of the mexican government people, i'm aware that at least when i was there the federal police were escorting these people from their destinations, their points of departure.
I believe the government is also going to escort them in when they get to the border.
That's why they stay closer as a caravan.
But, for the groups that are isolated and are breaking from the group, they are going to be the most vulnerable.
" fontes said the caravan participants have little to no money.
He tells us according to mexican intelligence cartels plan to take advantage of the situation since the caravan members don't have money, the cartel is seeing it as an opportunity to coerce them into smuggling or exploit them in other ways.
The mexican government escort could help dissuade those extortion attempts but stragglers could be more easily targeted.
In the studio, valerie gonzalez, channel five news