Tatiana Garcia Granados started The Common Market to bring farm food to her Philadelphia neighborhood. Now she's taking on the nation's broken food distribution system.
Tish Scolnik is using the power of business to give people with disabilities a new sense of freedom. At MIT, she designed a wheelchair that can travel rough terrain, whether a dirt road in East Africa or a hiking trail in North America. And now the young entrepreneur's company, GRIT, is selling the invention worldwide.