Why isn't everyone panicking about nuclear war over Ukraine?

Don’t Be Too Mad about MAD. Somehow, It’s Kept Us from a Nuclear War for 77 Years

  The latest events in Ukraine have demonstrated the ugly but effective operation  of Mutual Assured Destruction — the frightening and incredibly costly state of affairs in this world that arrived in 1949. That was when the Soviet Union exploded its own nuclear bomb, just four years after the US exploded the first three in …