21st century

  Upon reading an article pertaining to the events of September 11th I realize it was more than just 1 but multiple attacks that were conspired that day.  These series of events lead to multiple occurrences.  First was Operation Enduring Freedom an American international effort to destroy Osama Bin Laden's terrorist network. In a matter of two months the US had taken it out of operational power.  Secondly was tracking down the mastermind himself.  Who was unheard of until May the second two thousand eleven.

  Following those events a few changes have passed.  Such as airports and airplanes have different protocols.  The cockpit can only be unlocked form the inside, and more thorough searches.  Along with that immigration policy had been changed drastically, visas were hard to come by and even those who made it into the country were subject to  having their data collected.  And temporarily afterwards tourism in the USA wasn't so popular until a few years later.