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First Read Minute: Drones, Walker in Iowa, Weiner hits the trail

NBC's Domenico Montanaro looks at the day in politics. The focus is President Obama's speech on America's use of drones. But there's some campaign news, too, with Gov. Scott Walker, R-Wis., in Iowa and ex-Rep. Anthony Weiner, D-N.Y., making his first campaign stop in his bid for mayor of New York.