I said build not operate. The world situation has changed, 50 years ago nuclear power was a good idea to build. If you have a working nuclear power plant I'd generally keep operating it, and do small upgrades over time. However building a new one is something you should only do if you have military needs. (note that showing off is sometimes a military need)

CANDU 9 and Advanced CANDU reactors were developed and built during a time when Canada had no active military nuclear program.