While that does concern me a little, the article does say ... The primary frustration for manufacturers, however, is that even if they can prove they are under Prop 65 safe harbor levels, the costs associated with defending yourself (hiring a toxicology expert, legal fees etc) will almost certainly exceed whatever amount plaintiffs demand in settlement, prompting some lawyers to argue that Prop 65 has turned into a form of “legalized blackmail”. And then there's this page on the Soylent website regarding Proposition 65.Despite its laudable aims, however, Prop 65 has proved controversial given that the vast majority of firms sued over alleged violations opt to settle - even if they are supremely confident in the safety of their products - because the burden of proof is on defendants to prove exposure levels are zero (or in the case of substances where safe harbor levels have been set, below a set threshold).