This is complete for past hours:
https:// graphics.straitstimes.com/STI/STIMEDIA/Interactives/2018/06/trump-kim-summit/index.html
Singapore Summit up to minute details
https://graphics.straitstimes.com/STI/STIMEDIA/Interactives/2018/06/trump-kim-summit/index.html
This Hotel Had Tunnels, that were installed during the LBJ Years.
November 2017, there was a mysterious explosion where 1 was injured and 1 died, pic's would appear this was deliberate.
There is a mapping system also:
https://www.downtownhouston.org/site_media/uploads/attachments/2016-07-28/2016-AB-MAP-Buildings.pdf
I haven't figured out how to embed pdf, sorry
http:// www.historichotels.org/hotels-resorts/the-whitehall/
Contractor dies after Whitehall Hotel
explosionhttps://www.chron.com/news/houston-texas/article/Contractor-killed-in-Whitehall-Hotel-explosion-12360243.php
The tunnels located here are unusual because they were built exclusively for LBJ, I discovered this on another dig I did, regarding JJ Pickle, it's all connected, I disagree with your assumption, do the research and you will see, This hotel, had direct links to many famous people and had nefarious activities at the time.
PS, My believe the death of that contractor was not an accident, he either found something or knew something and needed to be gone.