titute Workshop "Fast is Beautiful: Supersymmetry and Strings in a Null Frame" 14-15 May 2014, 1.31.B, Brussels. • Seminar, "Galleons and Gravity", College of William and Mary, 15 April 2014. • Participant, "50 Years of Quarks and Color", University of Maryland — College Park, 11-12 April 2014. • Visiting Scient