Update on the physics of light pseudoscalar mesons

C. Bernard Washington University; Saint Louis, Missouri, USA C. DeTar University of Utah; Salt Lake City, Utah, USA Steven Gottlieb and L. Levkova∗ Indiana University; Bloomington, Indiana, USA U.M. Heller American Physical Society; Ridge, New York, USA J.E. Hetrick University of the Pacific; Stockton, California, USA J. Osborn Boston University; Boston, Massachusetts, USA D. Renner and D. Toussaint University of Arizona; Tucson, Arizona, USA R. Sugar† University of California; Santa Barbara, California, USA