FYI, the secure area connector between T3 and TBIT is now open. The entire airport is now walkable in the secure area of the airport except
between T1 and T2 which is still closed due to other construction and obviously the American Eagle terminal that requires a bus ride.
https://www.lawa.org/news-releases/2...ws-release-033
EDIT: Apparently the T1-T2 corridor has reopened since my last visit.