And you have damn good reason to be.
DEPORT ALL NON CITIZENS NOW. **WARNING** ANY OF OUR CITIES OR POSSIBLY SEVERAL OF THEM ARE AT GREAT RISK. GET THESE PEOPLE OUT OF OUR COUNTRY BEFORE ITS TO LATE.
Imagine, you have a dirty bomb-say 1-2,000 pounds of true military grade explosive & 10-20 pounds of hot radioactive waste. Your Al Qieda team leader or Sadman Hussein, or the North CrazyKoreans want it in downtown ANY City,USA. Just use a few thousand pounds of lead shield, case it up, secure it to the floor of a container ( weight can gross up to say 25-30,000 & no special permits are required on US highways ), ship it to any third world port, re-label it "Process Machinery" from & to semi-legitimate corporations & put it on the boat, & thence on the truck to where ever you please. It could wait years for its final use. Open & activate with simple detonation device whenever you wish. Your agents are infiltrated via the Mexican back-country & find comfortable employment to await your instructions.
Wonder what became of the story, during first few nites after 9-11, about attempted hijacking at Demming,NM of multi engine plane belonging to Univ of NM, right on the runway?? They were disuaded by either hostile lady pilot ( I think she just said no thank you Mr. Hijacker, no air trip for you tonight & drove it into the sand ) &/or approaching police.