TEDxChange 2012 is a TEDx event co-organized by the Bill & Melinda Gates Foundation and TED. Convened by Melinda French Gates and hosted by Chris Anderson, TEDxChange will focus on issues surrounding global health and development. TEDxChange type events are TEDx events hosted around the live webcast of TEDxChange, and also feature local speakers. TEDxWalledCity is one of many TEDx events happening around the globe on April 5th 2012. This year TEDxChange as well as TEDxWalledCity will be focusing on "THE BIG PICTURE", trying to find out how cross border social work impacts our lives and what WE can do to rapidly increase it's impact.