The most deadly terrorist attack on the US used civilian passenger planes. A UFO doesn't need weapons to be massively destructive. E = 0.5 * m * v^2, and UFOs r

The most deadly terrorist attack on the US used civilian passenger planes. A UFO doesn't need weapons to be massively destructive. E = 0.5 * m * v^2, and UFOs reportedly go a lot faster than a 767. And if they're too agile to shoot down, and never need to land or refuel, that's "a godlike ability to ignore everything we could possibly do".