Former President Barack Obama is traveling to Italy, where he will speak this week about food security and climate change. The former president is expected to go to Milan to meet with several Italians and discuss the issues. On Monday, the former president is scheduled to meet with former Prime Minister Matteo Renzi. That evening, he will attend a private dinner held by the Institute for International Political Studies. Obama on Tuesday is expected to give a keynote address to the Seeds and Chips Global Food Innovation Summit. The theme of the summit this year is "The Impact of Technology...