NPR: 08-19-2007 Health & Science

Stories: 1) Voyagers' Records Wait for Alien Ears 2) Psychologists Scrap Ban on Aiding in Interrogations 3) Size Matters: The Hidden Mathematics of Life 4) Parched Spanish Coast Taps Sea Water for Growth 5) Climate Connections: Algeria vs. the Sahara 6) Why are Moths Attracted to Flame?