With Russia's incursions into Ukraine becoming more aggressive, there has been a lot of chatter about whether or not the U.S. government should arm Ukraine with lethal weapons. Defense Secretary Nominee Ash Carter has signaled his openness to such a move. Ivo Daalder, Strobe Talbott, Steven Pifer, and collaborators have issued a call for such support. There has been push back from Sean Kay and Jeremy Shapiro, other establishment foreign policy...

