NASA Space shuttle veteran and International Space Station Expedition 12 commander Bill McArthur, KC5ACR, will be the League's guest at Dayton Hamvention 2007, Friday through Sunday, May 18-20, at Hara Arena near Dayton, Ohio. The first astronaut to work all states from space, McArthur has been applauded for inspiring others through his ham radio activities from NA1SS. He'll be featured speaker during a closed ARRL reception Thursday, May 17, and will be on hand all day Friday, May 18, to greet and talk with visitors to ARRL EXPO 2007 at Hamvention.