The 50-Year-Old Microplastics Warning That Has Come Back to Haunt the Industry

In June 1973, during a hearing on the Watergate scandal erupting around President Richard Nixon, Sen. Howard Baker, a Republican from Tennessee, uttered the most famous words of his entire career: "What did the president know and when did he know it?" It turned out that Nixon knew a lot early on, and that led to his resignation from the presidency a little more than a year later. Since then, a form of that question has become central in investigations of many high-profile scandals, including public health calamities such as those related to leaded…