What if the Russians have lives?
What if they’re husbands and wives?

So had and were Americans when their sons massacred in Vietnam and elsewhere.

The immediate message of the song is indeed outdated, because it reflects obsolete ideas about a WWIII and "civil defense". But obviously, war and peace is as acute a problem as ever. The most dangerous warmongers have become more sophisticated, and they sit in every country, including Russia. (May I mention that I went to kindergarten in the Soviet Union, and we had to march around the gym with gymnasic sticks shouldered representing Kalashnikovs or similar. The nanny pretended to be a nice lady, but left no doubt that she cared more for the regime than for us.)