superhero. >> good job, bat kid. >> reporter: dan simon, cnn. san francisco. >> that's fantastic. for those of you joining us in the "cnn newsroom," welcome, i'm fredricka whitfield. an ivy league school scrambles to stop the suppressed a rare disease. they may approve vaccines online used overseas to protect students. outrage grows as new allegations of misconduct against toronto's mayor surfaced. but rob ford is fighting to stay in office. his latest jaw-dropping comments straight ahead. and 50 years after the assassination of john f. kennedy. many are still convinced his murder was a conspiracy. we'll take a look and why with the shooting in detail believe lee harvey oswald doesn't act alone.