A team from Orrick, Herrington & Sutcliffe, representing the medical marijuana advocate Americans for Safe Access, isn't holding its breath for federal drug enforcement officials to erase their alleged misstatements about the health risks of cannabis.

The U.S. Drug Enforcement Administration has not responded to a petition from Americans for Safe Access that sought to correct allegedly false and misleading information from the DEA's website. Orrick filed the petition in late last year.

The next step? A possible lawsuit, said Orrick's Vickie Feeman, a partner in the firm's Silicon Valley office who is leading the pro bono effort for the pro-marijuana advocate.