Big booms were compensation for inaccurate delivery systems. We don't need them *now*. They still have a role for an EMP attack or even a thermal pulse attack

Big booms were compensation for inaccurate delivery systems. We don't need them *now*. They still have a role for an EMP attack or even a thermal pulse attack. A gigaton range bomb in orbit will fry electronics to the horizon and light fires to the horizon.