Matthew Holt spoke to Martha Wofford, head of Aetna’s CarePass platform, at the 2012 mHealth Summit in Washington, D.C. last week. Aetna CEO Mark Bertolini had just delivered a keynote and announced that his company will release the CarePass mobile app in March 2013. CarePass is a web portal where patients can connect data from their different personal applications. Here Holt speaks to Wofford about the development of Aetna’s technology offerings. He also asks her how much of an impact she thinks this tech can have on wasteful spending in the U.S. health care system.