Houston does have a problem and if the intel and law enforcement agencies are not crawling all over the area, well then . . .
http://www.debbieschlussel.com/14285/why-was-umar-abdulmutallab-in-houston-whom-did-he-visit-there-what-did-he-plan/
As detailed in an extensive 2007 report about this Islamic center, Al-Maghrib instructors also regular [sic] speak with other extremist preachers advocating for terrorism and violent jihad. According to extensive investigative reports published since 9/11, instructors and staff from that institute have been associated with numerous supporters of terrorist acts, including homicide bombings.
By Douglas J. Hagmann