Because they're not garbage collectors.
The US might invade it.
They rush in.
A MARSHian
Alien vs Predator
The human race.
A. because he wanted to help untie the human race.
Because they (some of them) don't have a garbage collector.
At random.
The fluorescent lamp wouldn't hurt a fly.
Me: We're putting Harriet Tubman on something that enslaves us all today.