Only because we know the risks and issues with them.
OP is talking about furthering technology, which is quite literally "discovering new things"; regulations on furthering technology (outside of literal nuclear weapons) would have to be along the lines of "you must submit your idea for approval to the US government before using it in a non-academic context if could be interpreted as industry-changing or inventing", which means anyone with ideas will just move to a country that doesn't hinder its own technological progress.