Dan Tannebaum, PwC Global Sanctions Leader, says there needs to be a unilateral approach to dealing with Russia. Tony Dwyer, Canaccord Genuity Equity Strategist & Managing Director of U.S. Portfolio Strategy, notes twin deficits do not matter until the yield curve inverts. Douglas Irwin, Dartmouth College Professor of Economics, says trade deficits cannot be fought with protectionist measures.Margaret Brennan, CBS's "Face the Nation" Host, says there are real problems with vacancies at the State Department. 

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