Why was Mr. Kilmartin given the anti-aging serum in the hospital where every nurse and patient could possibly go to his room and witness the tranformation?
When Jesse passes through the wall to rescue his grandfather, he discorporates the wall. But in the past he has only ever done that when letting someone else go through a barrier. When on his own he simply disperses himself, rather then what he is passing through. There's no reason here why he would render the wall intangible, particularly since that seems to require more effort then turning intangible himself.
Brennan: What are you going to tell the Dominion?
Lexa: Something short and pithy.
John Shea is billed as Special Guest Star.