Where do Mexican crime guns come from?

According to the Washington Post, they come from the United States:

No other state has produced more guns seized by police in the brutal Mexican drug wars than Texas. In the Lone Star State, no other city has more guns linked to Mexican crime scenes than Houston.

Of course, that is a bit of a misdirection, as others have shown. However, why isn’t anyone talking about taking the guns away from the US Border Patrol, in light of this story?

A Mexican woman is under arrest after agents at the Andrade Port of Entry discover a stolen gun in her possession.

The 25-year old woman was taken into custody on Saturday after agents at the border discovered the woman had a gun they say belongs to the US Border Patrol.

Can you believe this shit?

Read this story.

Lets sum up the story.
Man sneaks into country illegally.
Man works illegally for 11 years, living in Florida, using the social infrastructure for 11 years, all the while earning over $100,000.
Man fails to file or pay taxes for 11 years.
Man saves money- $59,000 over 11 years.
Man tries to illegally smuggle the money out of the US.
He gets caught, and the money is confiscated. Between the immigration violations, smuggling, and tax fraud, he will get none of his money back.
He has the nerve to say. “They are treating me like a criminal when all I am is a working man.”

Uh, you ARE a criminal. The Government offers him a deal:

Robert Gershman, one of Zapeta’s attorneys, said federal prosecutors later offered his client a deal: He could take $10,000 of the original cash seized, plus $9,000 in donations as long as he didn’t talk publicly and left the country immediately.

He turned it down, saying he wanted ALL of the money. I got news for ya dude- I was born here, and I don’t get to keep all of my money. Welcome to America- now go home.