A Senate staffer confirmed that Sen. John McCain no longer supports a bill he introduced to significantly tighten regulatory requirements for dietary supplements. McCain offered the Dietary Supplement Safety Act of 2010, S. 3002, in February. The Arizona Republican will now collaborate with Sen. Orrin Hatch, R-Utah, on revised legislation that allegedly provides for transparency and safety within the supplement industry but without the intensive regulatory intervention proposed in S. 3002. No timeline is set for introduction of a new bill. Hatch thanks McCain for withdrawing his support of the original legislation in a March 4 letter. "I'm counting on...