1. A reactor which is unstable against a loss of water could not be licensed in the United States.
2. A reactor which is unstable against a temperature increase could not be licensed here.
3. A large power reactor without a containment could not be licensed here.
4. In contrast to the laxity at Chernobyl, regulations are strictly enforced here. Violations like operators cheating on examinations or falling asleep on the job,failing to report promptly on minor malfunctions, or failing to carry out a required inspection have brought large fines, plus lots of bad publicity to the utility. Flagrantly violating rules of reactor operation, and disabling important safety interlocks, are essentially unthinkable in U.S. plants.