In the last year, courts have ruled that 1) Round-up causes cancer 2) Talc causes cancer 3) Wi-Fi causes cancer 4) Vaccines cause SIDs All of which are completely bloody wrong, clashing entirely with scientific data. The law is an ass - especially when it comes to science.
Your versions of claims (1) and (2) are intentionally non-specific and there is evidence for the actual specific claims. (3) and (4) are obvious nonsense and unrelated.