There are two places where you can find programming as diverse as Radio Australia, The Thomas Jefferson Hour, Vatican Radio, The Sound of Young America, and Voice of Russia. One of them is the Internet. The other is 91.7, better known as KUOW2, the 5-year-old sister station of KUOW. Broadcasting out of Tacoma, its only real flaw is a signal that, in Seattle, tends to come and go. That and its daily dissemination of The Diane Rehm Show. But hey, nobody’s perfect. JONATHAN KAMINSKY 543-2710, kuow2.org