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 1:17 Line Fire flare-up forces new evacuation in San Bernardino County 3:16 Family of man killed during downtown LA bus hijacking plead for justice 3:56 Inside look at LASD human trafficking taskforce in Compton 2:43 ‘Old Glory' oak tree becomes historic landmark 2:51 South LA community urging for Wetlands Park renovation