Restrictions on international economic flows—like Trump's tariffs—seem to be obviously bad. But politically speaking, that isn't always the case, Paul Poast argues.
Arctic conditions, local opposition, and processing and refining challenges make near-term gains unlikely, Emily J. Holland, Joshua Busby, and Morgan Bazilian argue.
"Europe should take primary responsibility for its security, but the United States needs to deliver key assurances to allow such a transition," Ivo Daalder argues.