USC April 15, 2024 11:24 pm USC valedictorian commencement speech canceled USC announced that the valedictorian will not be allowed to deliver the 2024 commencement speech during graduation, citing security concerns, Robert Kovacik reports for the NBC4 News on April 15, 2024. US & World Videos 3:06 Records: Graffiti-covered mansion in Hollywood Hills declared ‘nuisance' 2:57 Marqueece Harris-Dawson is now Los Angeles City Council President 1:39 Rain, hail bring flash flood concerns for Line Fire burn scars 0:44 Big Bear Zoo animals return home after evacuation 3:08 Taggers take over Hollywood Hills mansion