President Barack Obama awards the Presidential Medal of Freedom to psychologist Daniel Kahneman during an event in the East Room at the White House in Washington, D.C., on Nov. 20, 2013. On Thursday, just 22 days after his 90th birthday, Kahneman passed away. File Photo by Kevin Dietsch/UPI | License Photo March 28 (UPI) -- Pioneering psychology scholar Daniel Kahneman, who won the Nobel Prize in economics for his work applying cognitive psychology to economic analysis, has died. He was 90 years old. The Kahneman-Treisman Center For Behavioral Science and Public Policy at Princeton University announced he "died peacefully" Thursday,...