Newly released documents from the State Department indicate the U.S. government has known Islamic extremists have been entering the country via Mexico for over ten years.
A cable obtained by Judicial Watch under the Freedom of Information Act shows the U.S. was aware of "smuggling networks" that specialize in the trafficking of suspected Islamic extremists across the U.S.-Mexico border. The 2004 cable was sent to the State Department by the American Consulate in Juarez, Mexico.
Perhaps most alarming was the mention of a top Al Qaeda operative by the name of Adnan el Shukrijumah. The 2004 cable indicates the U.S. had human intelligence leading to his "exact whereabouts." It was not until December of 2014 - ten years later - that Shukrijumah would be captured (or in this case, killed in Pakistan).
Shukrijumah was described by FBI as "a grave danger to the security of the United States" and had ties to 9/11 mastermind Khalid Sheik Mohammed as well as to the 1993 World Trade Center bombing. Among other acts domestic and abroad, he helped plot the 2009 foiled bombing of Oprah Winfrey's Chicago studios and the Sears Tower.