The immediately preceding post excerpted this:
Dr. Ulrich KΓΌhn, a nuclear strategist at the University of Hamburg in Germany...worried that American domestic politics could play a role as well. Should Russia use chemical weapons or commit some other transgression, American leaders could face overwhelming pressure to retaliate...
Since that post:
U.S. warns Moscow against using chemical or biological weapons.
President Biden’s national security adviser, Jake Sullivan, warned his Russian counterpart on Wednesday against “any possible Russian decision to use chemical or biological weapons in Ukraine,” the White House said in a statement.
The explicit warning to Nikolai P. Patrushev, President Vladimir V. Putin’s main national security adviser, reflected escalating concerns in Washington that the Russians, stymied in their hopes of a quick takeover of the country, could resort to weapons of mass destruction.
