Ret. Gen. Frank McKenzie "not of the opinion" that U.S. will necessarily use military assets on Iran
The U.S. military buildup in the Middle East includes elite F-22 fighter jets and two carrier strike forces, which can sustain aerial attacks for weeks. Ret. Gen. Frank McKenzie and CBS News chief foreign affairs correspondent Margaret Brennan join "The Takeout" to unpack the state of U.S.-Iran relations.