I’ve always wondered when/if terrorists would stop killing themselves and start making real economic damage to their enemies by attacking our dependence on technology and transport. Seems like shutting down a couple of airports and then using a kite to land some mylar on some high tension power line insulators, then scuttling a fishing trawler sideways in a container port would be a really easy way to score some points against the great Satan.
See also: https://en.wikipedia.org/wiki/Metcalf_sniper_attack