TODAY 8a: White House security scare. Social media and youth mental health crisis. Loretta Lynn’s daughters speak out. Ally Love joins team TODAY.

<p>A driver detained after intentionally crashing a U-Haul truck into a security barrier outside the White House. Also, First On TODAY: a public health advisory from the surgeon general on social media and kids’ mental health. Plus, TODAY Exclusive: Peggy Lynn and Patsy Lynn share memories of their mom for the first time since her passing as they release a book on faith that Loretta wrote before passing called “A Song And A Prayer: 30 Devotions Inspired By My Favorite Songs.” And, popular Peloton instructor Ally Love joins the TODAY team. </p>