we begin this hour with a travel advisory. the u.s. state department issued a worldwide travel alert for americans living or traveling abroad. it warns that followers of al qaeda figures killed on friday could stage revenge attacks. read the entire warning on the u.s. state department s website. and in a matter of hours, amanda dknox is expected to spek directly to the jurors hearing her appeal. the american exchange student will have about 15 minutes to convince them to overturn her murder conviction and set her free. she is serving 26 years for the killing of her british roommate. back in this country, the jury in dr. conrad murray s trial returns to court tomorrow. murray is charged with involuntary manslaughter in michael jackson s death. beth karas with in session from our sister network trutv previews what s ahead. dr. richelle cooper will be back on the stand to complete her toast testimony. she was the emergency room doctor on duty the day michael jackson was