World's biggest radio telescope in NZ: Is it worth it?

It will be the world's largest radio telescope, but some New Zealand scientists are asking whether it's worth this country spending millions to help build it. The Ministry of Business and Innovation has so far invested $2.3 million in the Square Kilometre Array or SKA telescope over the past three years. It's estimated around $25 million will be pumped into the project before its finished in 2030. Science and Innovation reporter Charlie Dreaver has more.