Vice President Joe Biden and Representative Paul Ryan (R-WI) for the 2012 vice presidential debate in the Norton Center for the Arts at Centre College in Danville, Kentucky.*Both foreign and domestic issues were covered, including terrorism and intelligence, Libya, Korea, Iran, Afghanistan, Syria, Medicare, Social Security, tax policy, unemployment, health care, and abortion.*Martha Raddatz moderated the debate which was presented in a switched feed on screen with Twitter messages, “tweets,” displayed in the lower portion of the screen.