From this:

The Department of Homeland Security is alerting Texas authorities to be on the lookout for a suspected member of the Somalia-based Al Shabaab terrorist group who might be attempting to travel to the U.S. through Mexico, a security expert who has seen the memo tells FOXNews.com.

The warning follows an indictment unsealed this month in Texas federal court that accuses a Somali man in Texas of running a "large-scale smuggling enterprise" responsible for bringing hundreds of Somalis from Brazil through South America and eventually across the Mexican border. Many of the illegal immigrants, who court records say were given fake IDs, are alleged to have ties to other now-defunct Somalian terror organizations that have merged with active organizations like Al Shabaab, al-Barakat and Al-Ittihad Al-Islami.

...In a separate case, Anthony Joseph Tracy, of Virginia, who admitted to having ties to Al Shabaab, is currently being prosecuted for his alleged role in an international ring that illegally brought more than 200 Somalis across the Mexican border. Prosecutors say Tracy used his Kenya-based travel business as a cover to fraudulently obtain Cuban travel documents for the Somalis. The smuggled Somalis are believed to have spread out across the United States and remain mostly at large, court records show.

...In addition to the Somali immigration issue, Mexican smugglers are coaching some Middle Eastern immigrants before they cross the border – schooling them on how to dress and giving them phrases to help them look and sound like Latinos, law enforcement sources told FoxNews.com.

"There have been a number of certain communities that have noticed this, villages in northern Mexico where Middle Easterners try to move into town and learn Spanish," [Joan Neuhaus Schaan, the homeland security and terrorism fellow at Rice University’s Baker Institute] said. “People were changing there names from Middle Eastern names to Hispanic names."

Security experts say the push by illegal immigrants to try to fit in also could be the realization of what officials have feared for years: Latin American drug cartels are helping jihadist groups bring terrorists across the Mexican border...

Related:
12/26/06's Terrorism, drugs, illegal immigration links; Middle Easterners masquerading as Mexicans; Reyes
1/22/06's "'Osama's People' Smuggled Into U.S.?"
See also all the other entries on the immigration terrorism page.