. " weekends plus a little more for holidays and vacations, and we are talking about roughly 150k agents per 1000 miles.i do not know what they get paid, so i will assume pay plus benefits and other expenses comes to $50k/year. he is $7.5B per 1000 miles per year.so now i just need to multiply by the actual border length divided by 1000 mi and the actual yearly cost per agent divided by $50k.that might" . . .