Another reason there have been irregularities in the pork food supply was the adoption of new rules in spring of 2020 that were passed under the Trump administration in September 2019, called the New Swine Slaughter Inspection System (NSIS). The changes were stark, allowing plants to take over more of the inspection process themselves, speed up the line speed of their operations, and projected to result in the loss of a couple hundred USDA inspectors.
Two USDA inspectors turned whistleblowers talked about what it was like to work in a pork plant, and expressed their deep concerns about the new regulatory scheme in the interview below. Jill Mauer starts it off, saying "Toenails, hair, sexual organs, bladders..." are potentially in your pork. Sexual organs and bladders, by the way, are often quite high in nandrolone.
https://www.nbcnews.com/politics/2020-election/inspectors-warn-unsafe-pork-could-make-its-way-consumers-under-n1097676
WADA did not know or care about any of this:
https://www.govexec.com/management/2020/03/federal-pork-inspectors-are-sounding-alarm-over-usdas-plan-give-industry-more-control/163527/