One of the red flags when it comes to science on the radio is the number of Americans interviewed for an item. The more Americans, the more dubious the science. Good rule of thumb. If they ever interview four Americans, then we'll be in Food Causes Death territory. The Autopsies All Found Food In The Stomach - Food Causes Death. The reason much American science, when conducted by Americans, is poor is that during the Vietnam War the university faculties suddenly had to expand massively to cope with demand for higher education from draft dodgers like Donald J Trump. People who otherwise would have no hope of teaching in university suddenly found themselves on campus faculties after all. And if you're taught by an idiot...... This is why I ended up giving up on history books written by American academics. That was disappointment as I was interested in a non-British take on events but what I got was often really poorly researched and fantastically chauvinistic.