Mealey's (December 14, 2021, 11:31 AM EST) -- HOUSTON — A federal employee’s claims alleging that her insurer and the Office of Personnel Management improperly failed to cover proton beam radiation therapy (PBT) to treat her cancer are preempted or cannot escape sovereign immunity, and her allegations do not point to events sufficiently definitive for injunctive relief, a federal judge in Texas said Dec. 13....