In those days scientists asked tough questions and required lots of hard evidence before jumping to conclusions.
These days they jump to conclusions in a rush to publish (and of course get government money).
Bonus: Anyone who questions their “theories” is viciously attacked as “anti science”.
Theoretically, perhaps. In practice, 'hard questions' are really used to attack competitors, or to smear someone, often for political reasons (Ed Teller for example who was one of the few who could hang with Fermi), occasionally for purposes of personal advancement.