Do you have a source on that? Because I do know that government contracts are alive and well at engineering schools. They are not exploring how to build better bridges.
https://www.military.com/daily-news/2021/07/02/navy-finally-pulls-plug-railgun.html
China’s railgun is currently undergoing sea trials.
Antisupercavitating torpedo defenses cancelled. Also, while the Russians, Indians and Chinese have supercav torpedoes working and on the world arms market, our program to do the same is a litany of failure.
Plenty more where those came from.