BOSTONAccording to the National Consumer Law Center, a bus-stop poster advertising the weight-loss pill TrimSpa has more legal protections than the average citizen. 'The TrimSpa bus poster enjoys broad First and 14th Amendment coverage, as well as extensive deterrents to willful damage,' NCLC spokesperson Angela Broadbent said. 'Unfortunately, this is not true of claims made by citizens in regard to the ad, its product, or the Nutramerica Corporation.' Nutramerica has brought a lawsuit against Broadbent and NCLC executives on charges of slander, libel, and conspiracy to undermine the public good. 