Jared Guinther is 18. Tall and lanky, he will graduate from Marshall High School in June. Girls think he's cute, until they try to talk to him and he stammers or just stands there -- silent. Diagnosed with autism at age 3, Jared is polite but won't talk to people unless they address him first. It's hard for him to make friends. He lives in his own private world. Jared didn't know there was a war raging in Iraq until his parents told him last fall -- shortly after a military recruiter stopped him outside a Southeast Portland strip mall...