Which masks are most effective and which ones will soon be banned by airports?

On the Sunday, August 16th edition of The Travel Guys: In the travel news, the national parks are going to get a much needed makeover as the president signs a bill to provide nearly $10 billion in needed repairs and updates.  And cruise lines push back their reopening plans once again.  Updates next in the news… Our Smarter Traveler segment talks about the new twist to the covered face situation.  Some coverings are not really...