Clash of Clans and the Twin Towers

Listen here, you goof. You think it's funny to make light of a national tragedy? Well, you're probably the type who thinks the Earth is flat. This joke plays on a connection between the Twin Towers and the game "Clash of Clans," where players build towers. The "joke" states that Americans aren't good at this tower-building game because they have already lost two towers (in reference to 9/11). Get it? It's not funny.