Eric B. Lorber is skeptical about the United States' new economic and technological sanctions against Iran and Russia.
Daniel W. Drezner reviews the pros and cons of economic sanctions, with a focus on their hidden effects, including corruption.
Brink Lindsey reviews the American standard of living. He finds easily measured gains - and some real but less tangible losses.
Smaller international organizations do sanctions better, Bryan Early has found. Indeed, sanctions from the United Nations are commonly useless.
David Brin criticizes the possibly reckless turn in recent SETI research. He also speculates on what the great silence may say about human societies.