In the 70ies you could buy the upper bridge for not more than USD
3200, now it is about half a million. It seems, that the new management
does not want you to go OT. Here are the facts.
This non-confidental list about the
OT-Levels shows, that from the date of 1980 the former OT-Levels 4
to 7 were replaced by the so-called Pre-OT-Levels. The new management
does definitely not want you to go OT.