If truth is the first casualty of war, then rationality is the second. From Glenn Greenwald at greenwald.substack.com:
Every useful or pleasing claim about the war, no matter how unverified or subsequently debunked, rapidly spreads, while dissenters are vilified as traitors or Kremlin agents.
In the weeks leading up to the Russian invasion of Ukraine, those warning of the possible dangers of U.S. involvement were assured that such concerns were baseless. The prevailing line insisted that nobody in Washington is even considering let alone advocating that the U.S. become militarily involved in a conflict with Russia. That the concern was based not on the belief that the U.S. would actively seek such a war, but rather on the oft-unintended consequences of being swamped with war propaganda and the high levels of tribalism, jingoism and emotionalism that accompany it, was ignored. It did not matter how many wars one could point to in history that began unintentionally, with unchecked, dangerous tensions spiraling out of control. Anyone warning of this obviously dangerous possibility was met with the “straw man” cliché: you are arguing against a position that literally nobody in D.C. is defending.
Less than a week into this war, that can no longer be said. One of the media’s most beloved members of Congress, Rep. Adam Kinzinger (R-IL), on Friday explicitly and emphatically urged that the U.S. military be deployed to Ukraine to establish a “no-fly zone” — i.e., American soldiers would order Russia not to enter Ukrainian airspace and would directly attack any Russian jets or other military units which disobeyed. That would, by definition and design, immediately ensure that the two countries with by far the planet’s largest nuclear stockpiles would be fighting one another, all over Ukraine.