What is due diligence though? Are they supposed to do a forensic analysis of every paper they cite? It's sad if it's arrived to this point. Reproducing the or

What is due diligence though? Are they supposed to do a forensic analysis of every paper they cite? It's sad if it's arrived to this point. Reproducing the original result can be prohibitively expensive and difficult in many fields (ideally, this wouldn't be a concern - but generally, research groups aren't rolling in cash and resources, plus you need to be fast not to get scooped for the next paper and lose future grant money)