If you're like me, you're feeling frustrated, angry, depressed and sad; sick of guns, sick of violence and fear; sick of thoughts and prayers, sick of moments of silence; sick of endless lists of names and #hashtags and changing your profile picture to match the color or symbol of the latest mass killing.

I am proud to introduce you to each of them and excited to share their insights into how all of us can be a part of the solution to "Raise The Caliber" of our communities.

Proving the maxim that change is a marathon, not a sprint, after a two-year campaign by American moms to get Facebook to change its gun policies, the tech giant finally responded by prohibiting all unlicensed gun sales on their social media platforms.