A little knowledge is dangerous.
My view - we all have our areas of expertise (RCR, Hazmat, Tankers, Vertical Rescue, Pumper - what ever) but lets aim to be competent in what we already have (not just as individuals but as whole brigades) before we take on more tasks.
We have people trained in CBR, who if the need arises can guide, instruct and lead those who aren't! Lets put our faith in their training, abilility and skills.
As for a politician being deeply concearned - maybe he should be concearned enough to ensure we have appropriate PPE, appliances, equipment, stations, support and alike before he jumps on the current band wagon of CBR!!!!