Came here for rtx. On day one, the convention cent...

Came here for rtx. On day one, the convention center staff thought it was a good idea to put in two metal detectors for entry to the main exhibit hall. With over 50,000 attendees this created a huge bottleneck and made the day a waste. The next day it was resolved, but I don't understand how that big of a mistake could be made in the first place.