DC strike talks fail; Gary, IN mill strike spreads to coal miners; workers leave steel mill; man exits gate as cops watch; women on picket lines, train on elevated tracks BG; CU women pickets; idle workers on street; people watch smoky fire at steel mill; people run on street, including newsreel man with camera; troops up steps; CU Gary Mayor Hodges, Gen. Leonard Wood; soldiers unload supplies from train; soldiers patrol street; line of troops with machine guns; soldiers trot to cars; VIPs, including AFofL head Samuel Gompers, up steps; CU Bernard Baruch NICE; CU Labor Secy Wilson; woman labor rep Mrs. Conboy CU; steel mill, coal mine strike, negotiations; ECU United Mine Workers union leader John L. Lewis NICE; CU AFofL leaders William Green, Samuel Gompers; CU US Atty Palmer; labor leaders leave Indianapolis federal building; striking miners, mine BG; soldier guards mine; soldiers try to erect tent; soldiers, tents; soldiers at mine.