From NBC's Ken Strickland Republican Sen. Dick Lugar (IN) today said an Obama campaign ad which features him is "accurate." The ad makes the point the Obama previously "reached out" to Lugar to "help lock down loose nuclear weapons." Lugar is widely considered one of the most knowledgeable in the area of nuclear weapons proliferation and the coauthored of the 1991 Nunn-Lugar Act on cooperative threat reduction. "He did" reach out, Lugar said. He explained that in 2005, Obama asked if he could join Lugar on a trip to Russia and other countries to visit sites under the Nunn-Lugar program....