Topics of articles in this issue of Cornell Veterinary Medicine include: Environmental Impact; Cancer in Cats: A Different Animal; The Promise of RB Therapy; A Model of Inspired Technique; Collaboration Expressed; A Novel G Protein Comes to Light; Radiation Therapy Has Arrived; Reinventing Continuing Education; Homeland Security: Torres Testifies; Honors, Gifts, and Grants: Faculty, Alumni, Students; Harold Zweighalf Honored; Mastitis Program Wins Grant from Vitamin Settlement; On to Greener Pastures (Ellie, the fistulated cow); A Little Help from Our Friends; Endnote (Donald F. Smith); Coming Events.