The videos below are from a 2008 lecture given by ambassador Mark P. Lagon. At the time, Mark Lagon was the director of the Office to Monitor and Combat Trafficking in Persons (TIP) and was a Senior Advisor to the U.S. Secretary of State Condoleezza Rice.
The focus of his lecture is about migrants and how to protect from traffickers, what are the causes and forces behind trafficking, and how we can combat trafficking going forward. 
You can SKIP the first 10 minutes of the full video as it's all introduction and thank you's.  The full lecture is about 90 minutes long, but I've also placed 2-4 min. highlight videos if you don't have time for the full length feature.
WATCH FULL VIDEO
HIGHLIGHTS:
T-VISA and protecting people trafficked into the United States
Why Migrant Women are Greatest at Risk
Human Trafficking is NOT just a Foreign Problem
 
 
 On the surface, Tenancingo looks like any other small Mexican city. Situated partway between Mexico City and Veracruz, Tenancingo is full of extended families, children celebrating birthdays in parks, and busy public markets. But Tenancingo has a secret industry which is both hidden and known by many — the forced prostitution of women which has kept the town alive for three generations. Here's how one Mexican town became a petri dish for sex trafficking.
On the surface, Tenancingo looks like any other small Mexican city. Situated partway between Mexico City and Veracruz, Tenancingo is full of extended families, children celebrating birthdays in parks, and busy public markets. But Tenancingo has a secret industry which is both hidden and known by many — the forced prostitution of women which has kept the town alive for three generations. Here's how one Mexican town became a petri dish for sex trafficking.