dangerous enemies could ruin the kennedy presidency. >> he said democrats don't go after labor leaders no matter how corrupt they might be. not only will you destroy your future but you'll destroy your brother's future. >> bobby was a stern moralist and tough guy and there was a rebellious streak in him. he was willing to defy parental authority to go after the mob. >> this was personal. he felt these people were animals and he wanted personally to destroy them. >> there's one mobster in particular whom bobby is obsessed with bringing to justice. >> sam jgiancana was exactly th sort of villain bobby kennedy would want to take on.