[Capt. Tom]

I thought the border wall was to stop illegal aliens from walking into this country from Mexico.

Stopping Muslim terrorists is a different type of problem. Tom

[Yardstick]

No, clearly Mexicans crossing over on foot like they’ve been doing for decades is a newfangled problem of modernity that nothing as simple as a wall can possibly address.

[itsahoot]

Stopping Muslim terrorists is a different type of problem. Tom

The government flies them over the wall and installs them in your neighborhood or someone else's, but they will become voters and like in London they will become powerful leaders.

[USNBandit]

That would require tracking visa overstays. Which we could do with an app on a phone. Stop checking in, we hunt you down.

It will take years to build a wall. A lot could be achieved while waiting for the wall to be built.