Don't forget that the wall needs to be see-through, so you can see if any Mexicans are trying to catapult drugs over, which might land on and kill innocent Amer

Don't forget that the wall needs to be see-through, so you can see if any Mexicans are trying to catapult drugs over, which might land on and kill innocent Americans. Oh, and we can put solar panels on the wall, which will help pay for the wall with the power generated, even though the Mexicans are paying for the wall via increased tariffs on Mexican goods, forcing American consumers to pay more.