Delta Scientific, the leading manufacturer of counter-terrorist vehicle control systems used in the United States and internationally, announced that a YouTube video from Bay Area TV station KBCW demonstrates how Delta’s portable vehicle barriers protected last weekend’s Fremont Street Festival which had an attendance projected at up to 300,000 people. The 2-1/2-minute video demonstrates how the barriers work, provides a background of why they are needed by showing the tragedies at London and Nice when terrorists mowed down pedestrians and interviews several Fremont people involved with the festival.