The USPS is truly one of the most incompetent entities around. The only one worse is AMTRAK. The train folks had 601 delays on my local ride in the 152 days last year. That is about 4 delays per train per day. Now the USPS refuses to deliver packages...yep...it must be the snow...all three inches of it.
Now for those folks who want Government healthcare, just think of these two entities. Even worse, think of the IRS! Combine them and we would eliminate any population explosion. We would all be dead!
Oh, about that wall, how about a tunnel between New Jersey and New York. You can even charge for that. Guaranteed that New Jersey folks would pay for it, pay for anything!