Is Putin prepared to pull the nuclear trigger? 

Kremlin watchers continue to try to figure out a faltering Putin’s next move and whether his threats of going nuclear are real or just more bluff and bluster, writes John Leicester

For now, analysts cautiously suggest the risk of Putin using the world’s biggest nuclear arsenal still seems low. File picture: Gavriil Grigorov, Sputnik, Kremlin Pool Photo via AP

Will President Vladimir Putin pull the nuclear trigger?

For Kremlin-watchers trying to figure out whether the Russian leader’s nuclear threats are just bluffs, there is no more pressing — or tough — question.