Actor Dennis Quaid testified before Congress about a near-fatal drug mix-up in which his newborn twins received 1,000 times the correct dose of the blood thinner heparin. Quaid said the experience underscores the need to hold pharmaceutical companies accountable through lawsuits. Beginning with the Bush administration, the Food and Drug Administration has stepped into suits on the side of pharmaceutical companies, arguing that federal regulation of drugs pre-empts state suits.