The Tunnel has had a lane or two shut down for a while now to install signs. Red about its reopening and what is going on.
http://www.lasvegassun.com/news/2010/nov/20/all-lanes-airport-connector-tunnel-set-open/
Don
http://www.lasvegassun.com/news/2010/nov/20/all-lanes-airport-connector-tunnel-set-open/
Don