Mexican Marines Capture Zetas Leader

Mexican marines had a big day, on Thursday, when they successfully captured Ivan Velazquez Caballero, one of the leaders of the Zetas.

He was one of Mexico's thirty-seven most wanted.

According to some sources he and another Zetas leader, Miguel Angel Trevino Morales, had been in a power struggle.

The Zetas are one of the most powerful and violent drug cartels in Mexico.

President Felipe Calderon has put a lot of resources into ending the drug cartels' power.

The drug war in Mexico has left more than ten thousand dead, mostly due to violence between cartels.