I used to add news in my hubs to keep it current.. but I had recently removed the news capsules in my hubs as I don't think they are helping my hubs. In the forums (sorry I tried to look for it, but couldn't find it) it was mentioned that the Google bots might mistakenly take the news as duplicate and give your hub a very low ranking page... but I could be wrong. To be on the safe side, I removed the news capsules in my hubs. Most of my hubs didn't have news in the first place and my best viewed hubs didn't have news. But then again, I've only been here four months. I hope this helps a little.