O.K.  A radical Nigerian muslim buys a one way ticket (with cash) to the U.S.  He doesn’t check any luggage, just has carry on bomb-making gear. Oh, and his dad had called the U.S. embassy to report his concerns about his son’s irrational behavior.  None of that raises suspicions.  Now stateside, Ivana Trump is kicked off a jet for yelling at kids running in the first class aisle. Who poses the greater danger?  The potty-mouthed socialite or the Nigerian nutjob?