That is the problem ... the FDA is making tests that don't prove anything.
How would you respond to "We have inconclusive evidence that your job may be hurting someone ... so we think you should return your paycheck for the year"? You'd probably tell them to go fly a kite (or something a little more blunt). I know I would.
Before you ask a company to throw away $million$ of dollars; you had better to be able to conclusively show 'Why'. The FDA has failed to do this very basic task.
You know that’s the problem and so do I.
But an inconclusive test just means they have not been able to identify the contaminate. Doing the wrong tests for the wrong things will give you false results.
But...the November Warning holds some brevity here. They would not have issued a warning for nothing, they just have not solved the puzzle yet.