National Guard members and state police members began their rollout of increased security in the subways. Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G Watch 24/7 coverage of breaking news and live events on ABC News Live: https://www.youtube.com/watch?v=gN0PZCe-kwQ&ab_channel=ABCNews Watch full episodes of World News Tonight with David Muir here: https://youtube.com/playlist?list=PLQOa26lW-uI8ixlVw1NWu_l4Eh8iZW_qN&feature=shared Read ABC News reports online: http://abcnews.go.com ABC News Digital is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. ABC News is the home to the #1 evening newscast “World News Tonight” with David Muir, “Good Morning America,” “20/20,” “Nightline,” “This Week” with George Stephanopoulos, “ABC News Live Prime” with Linsey Davis, plus the daily news podcast “Start Here.” —–– Connect with ABC News on social media: Facebook: https://www.facebook.com/ABCNews Instagram: https://www.instagram.com/abcnews TikTok: https://www.tiktok.com/@abcnews X: https://twitter.com/ABC Threads: https://www.threads.net/@abcnews LinkedIn: https://www.linkedin.com/company/abcnews