(Bloomberg) -- Bloomberg Opinion Weekend Edition hosted by June Grasso.

Guests:

Nir Kaissar, Founder of Unison Advisors and Bloomberg Opinion columnist: "Fidelity's No-Fee Funds Unleash the Power of Free."

Bobby Ghosh, Bloomberg Opinion editor: "Canada Learns That No One Wins a Twitter Fight."

Faye Flam, Bloomberg Opinion Columnist: "A Personality Trait That Holds Back Potential Leaders."

Mary Duenwald, Bloomberg Opinion editor: "Future of Health Insurance Is at Stake in Midterms."

Noah Smith, Bloomberg Opinion Columnist: "A Recipe for Saving the Troubled American Heartland."