The number of people killed by terrorists jumped by 60 percent last year, according to a report released Tuesday by Australia's Institute for Economics and Peace. The group found that Afghanistan, Iraq, Nigeria, Pakistan, and Syria accounted for four-fifths of the 18,000 deaths attributed to terrorism in 2013. More than a third — 6,300 — were in Iraq. Very few attacks have been registered in developed nations since the Sept. 11, 2001, attacks and the July 7, 2005, suicide bombings in London. You can read more about the study at The New York Times.