Your post makes a good point, but I think this sentence is the opposite of what you wanted to say.
It is strange... In WWI, WWII,the Korean War, the Vietnam war, the cold war and The war on terror there has never been a documented case of an enemy of the US getting across the Mexican border.
Before 9/11, nobody had ever crashed airplanes into the WTC either. Where there's a will, there's a way.
You have to get permission (THAT IS PAY) the Mexican banditos to cross the border.
Not true. I had friends who hired migrants to pick apples every summer. I heard their stories first-hand. Thousands of illegals sneak across the border without the aide of banditos/smugglers.
They just bombed Pearl Harbor. That was done with airplanes too.