Commentary Oh, for the good old days of the Soviet Union. America’s foreign policy and goals were clear then: containment and opposition to communist expansion. Nuclear weapons were a deterrent, but neither side believed the other would use them. Russian President Vladimir Putin has changed the game by threatening to use nukes should the U.S. directly confront his forces now raping Ukraine and committing war crimes that the world is watching thanks to ubiquitous mobile phones, brave reporters and camera crews. President Biden and top members of his administration say we can’t directly intervene to stop Russia because of Putin’s threat. Is that America’s new foreign policy? If we can do little beyond sanctions against nations that have nuclear weapons this will signal to those who have them—and those planning to acquire them—that they have little to fear from America should they proceed with invading Taiwan (China) or attacking Israel (Iran). Suppose …