Russia-Ukraine Crisis (CTV News)

"Well, I think trying to read Vladimir Putin's mind is a recipe for disappointment. I think what the U.S. has control over and what it can do is to be clear about how it is going to react and to make sure that the penalty for misbehavior, further misbehavior on the part of the Russians, will be so sufficiently unappealing that it will deter Putin," said Stephen Farnsworth, professor of political science at the University of Mary Washington in Virginia.

Russia-Ukraine Crisis (CTV News Canada)