October 13: Borders open for vaccinated travelers. Catching up with William Shatner ahead of Blue Origin launch this morning. NBC News exclusive: new salt guidance. New developments in Gabby Petito case.

<p>The Biden administration announcing plans to reopen the borders with Canada and Mexico to fully vaccinated travelers and telling states to begin preparing to vaccinate young children starting early November. An NBC News Exclusive: New guidelines from the FDA on how much salt we should be eating. Plus, Blue Origin set for lift-off this morning — Tom Costello catches up with William Shatner as he prepares to become the oldest person to go to space. Also ahead, officials confirm Gabby Petito was strangled to death as hunt for Brian Laundrie continues.</p>