1. Update, 5:30 p.m. EST: So how will the crisis in the Ukraine end?

    "This crisis will simmer for awhile," Marc Ambinder writes on The Week. "A process that allows Putin to claim that he successfully defended the Russian minorities in Ukraine without going to war, along with one that recognizes a future government legitimized by future elections (subject to UN or OSCE monitoring), is the proximate endgame. (I hope)."

    "Like it or not," Christopher Dickey writes on the Daily Beast, "the West is facing the prospect of a new Cold War with Russia because that seems to be right in Putin’s KGB-bred comfort zone. And the thing about a Cold War is that there’s no guarantee it won’t become a hot one."
  2. Update, 5:15 p.m. EST: CNN's "Crossfire" tried to boil the crisis in the Ukraine down to an impossibly simple question.
  3. Update, 3:52 p.m. ET: U.S. and Russian ambassadors exchanged sharp words at the United Nations in New York on Monday. At a U.N. Security Council meeting, Vitaly Churkin, Russia's ambassador to the U.N., said ethnic Russians in the Ukraine are under attack from "anti-national radicals" and defended the possible use of force in Crimea.

    "We're talking about defending our citizens and our compatriots, on defending the most important human right, the right to life," Churkin said.

    "There is no evidence that ethnic Russians are in danger," U.S. ambassador Samantha Power (above) responded. "Russia is trying to convince the world community that up is down, and black is white.

    "What is happening today is a dangerous military intervention in Ukraine," Power continued. "It is an act of aggression. It must stop."
  4. The Ukrainian state emblem is seen on a gun's holster as soldiers guard the naval base in the village of Novoozernoye, Ukraine, March 3, 2014. (Ivan Sekretarev/AP)
  5. Update, 3:30 p.m. EST: Both pro-and anti-Russian demonstrators gathered in the Ukrainian city of Odessa on Monday. The pro-Russian group, carrying Russian flags and chanting "referendum," were refused entry to a government building. Supporters of the new government in Kiev gathered behind them, as police kept the two protests apart.