Like millions of other people in Japan, I watched the events of March 2011 unfurl with shock and trepidation. The massive earthquake, the terrible tsunami and then what seemed to be a dreadful nuclear disaster.

Yet now I wonder at my naivety, because the nuclear accident at the Fukushima No. 1 nuclear plant triggered in me a critical review of everything I thought I knew about radiation and nuclear power. I am now firmly pronuclear, and not despite the Fukushima accident, but because of it.

Let's look objectively at what happened. There was a major earthquake, unprecedented in scale, followed by a 15-20-meter tsunami that flooded a large nuclear power plant. The equipment designed to provide power to the cooling systems in case of accident was flooded, and human error was also a factor. As a result, full or partial meltdown occurred in three separate reactors. It was pretty much a worst-case scenario.