Touchstone - S2-E14
Corrected entry: In this episode, Hammond says that a permanent iris will be welded over the Beta gate. In Nemesis (Season 3), he says "I want the beta gate unpacked and ready for use as soon as humanly possible." What happened to the words 'Permanent Iris".
Correction: In this case, the words "as soon as humanly possible" can be reasonably assumed to mean 'as soon as you can cut the iris off'. It was designed not to open, not to be indestructible.
J I Cohen