In Chicago we had 222 attendees and 10 Science and Society attendees in the 2nd meeting of T21RS. We had in total 60 speakers in 4 plenary lectures, 12 symposia (three lectures each), 3 oral communication/breakthrough sessions (6 presentations each including the Thesis award winner), 71 posters in 2 poster sessions with Flash Poster presentations (eight presentations of 5-minute) and one Science and Society session.