The provided text explores various hypothetical scenarios surrounding the **9/11 attacks**, specifically focusing on **alternate targets** for United Airlines Flight 93. It meticulously examines the **potential consequences** if the White House, the U.S. Capitol, or both institutions were struck. The analysis details the **structural impact**, **casualty estimations**, and the far-reaching **political, governmental, and symbolic repercussions** of each scenario, including discussions on **presidential succession** and the **continuity of government** in such extreme circumstances. Ultimately, the sources highlight how these different attack outcomes would have profoundly shaped the **U.S. response** and its subsequent trajectory towards a more **militarized and security-focused state**.