Q: Why is America bad at chess?
A: Because they already lost two towers.
Q: Why is America bad at chess?
A: Because they already lost two towers.
Alright listen up, genius. This joke is funny because it makes a dark joke about 9/11. The "two towers" refers to the Twin Towers that got destroyed. The joke plays on the tragedy to make a point about America's chess skills...which are presumably not good. And you are probably bad at chess as well.