Please be responsible journalists. Before you further this made-up controversy over helmets, you should look at stats: the safety of cycling is vastly increased by the number of cyclists who ride, and by smart infrastructure. I was recently in Holland. Take a look at this 20 sec video of cyclists in Utrecht.
Do you see a single helmet? No, Because riders are safe from cars - the main threat to their lives. If you look, pedestrians are also safe. And look at some of those cargo bikes (in this case ferrying kids). You want fewer truck deliveries? This is one of the answers and Holland makes good use of them:
Here's something you could do: do a little traveling. Go to cities in Europe or Asia that have done it right: Tokyo, Amsterdam, Copenhagen, Barcelona. It's eye-opening and it is the future.
Meanwhile, please do not give space to this argument which only distracts from the real problem which is cars, pollution and climate change. You make the battle for safe streets that much harder.