Since those sonic booms worried so many people and clogged up the 911 dispatch center so badly, I guess they need to let the pilots of those little military jets cut loose and hit Mach 1 a little more often, so people can get used to the sound.
Call 911 to ask, "What was that sound"??? JFC! See what happens when a country has a nanny government?
If there's no debris, no dust, no fire, no alarms, and no sirens, don't get your knickers in knot.
Sue