In honor of National Women’s History Month, each week Ploughshares Fund will be honoring the women who have been instrumental in advocating for nuclear nonproliferation and recognizing leaders in the field. Since one month is not enough to speak on all the amazing women in nonproliferation, we present you with a Bonus Week! Guest Blogger Ellen Laipson, President and CEO of the Stimson Center, was kind enough to share her thoughts on nonproliferation and the work being done at Stimson.