With tens of thousands of visitors to handle, officials in South Florida are cracking down on spring break crowds and unruly partiers with security checkpoints, curfews, bag checks and other restrictions. NBC’s Sam Brock reports for TODAY. » Subscribe to TODAY: https://www.youtube.com/@TODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: https://www.today.com/ Find TODAY on Facebook: https://www.facebook.com/today Follow TODAY on Twitter: https://twitter.com/TODAYshow Follow TODAY on Instagram: https://www.instagram.com/todayshow/ » Stream TODAY All Day: https://www.today.com/allday About: TODAY All Day is a 24/7 streaming channel bringing you the top stories in news and pop culture, celebrity interviews, cooking, and more. All in one place. #florida #springbreak #miami