The CDC gets funded $billions per year to test and determine the effectiveness of of preventative strategies- including masks..... The fact that there are still multiple questions and contrary studies about their efficacy along with the Fauci flip-flops himself on masks needing to be worn brings lots of controversy.....if masks were sooo important in pandemics why wasn't Fauci sounding the alarm for the previous 3 years about the depleted state of strategic levels of masks