In furnishing assistance to Yugoslavia, the President shall continuously assure himself (1) that Yugoslavia continues to maintain its independence, (2) that Yugoslavia is not participating in any policy or program for the Communist conquest of the world, and (3) that the furnishing of such assistance is in the interest of the national security of the United States. The President shall keep the Foreign Relations Committee and the Appropriations Committee of the Senate and the Speaker of the House of Representatives fully and constantly informed of any assistance furnished to Yugoslavia under this chapter.