The Obama administration is launching a new space arms-control initiative that critics say will lead to restrictions on U.S. military activities in space, a key U.S. strategic war-fighting advantage. Secretary of State Hillary Rodham Clinton is expected to announce the initiative as early as Tuesday. The plan will be built on work contained in a European Union draft code of conduct for space that the Pentagon and State Department have criticized as too restrictive. “The United States has decided to enter into formal consultations and negotiations with the European Union