Putin invades Ukraine again; West weighs sanctions options

<p>Tonight's guests are Richard Engel, NBC News chief foreign correspondent; Michael McFaul, former U.S. ambassador to Russia; Admiral James Stavridis (ret.), former NATO Supreme Allied Commander; Anne Applebaum, staff writer for The Atlantic; and Lt. Col. Alexander Vindman, U.S. Army (ret.), former director for European affairs for the U.S. National Security Council.</p>