CHULA VISTA, Calif. -- Kara Patterson holds a long, heavy javelin above her head. She waits. She moves it next to her ear and runs. In one smooth motion, it flies from her hand in an elegant arc, landing way down the field as it plunges its point into the grass.Her coach watches from a folding chair on the sidelines. "Better," he says.Then the 2008 Olympian throws the javelin again. And again. And again.She's trying to make the 2012 Olympics.