TODAY 8a: Border officials brace for Title 42 deadline. Peanut allergy skin patch shows promise. NBC reporter’s health scare. Mike Tirico previews new NFL season.

<p>Migrant crossings expected to surge as Title 42 is set to expire tonight. Also, Dr. Natalie Azar breaks down everything you need to know about a new treatment that has shown promising results for children with peanut allergies. Plus, Your Health: NBC’s Morgan Chesky shares his story with an important health warning. And, Mike Tirico in studio 1A as he reveals two of the season’s most anticipated match ups including the big kick-off game. </p>