When the newspaper salesman becomes afflicted, he stumbles over a newspaper stand and immediately following that The Observer steps out of his way.
The glyphs in this episode spell "Olivia".
The episode opens in Wissenschaft Prison, Germany. In German, "wissenschaft" means "science".
Both light boards have 47 lights, and the bomb is found on the 47th floor. As this episode deals with teleportation, the repetition of 47 is a reference to the Star Trek universe, where the number 47 appears again and again.
Jones tells Olivia to go to the amusement park in Salem, on Policy Street. There is such a place but it is in Salem NH, not Salem Mass. Canobie Lake Park is a very pleasant family amusement park with a street address of 85 Policy St. It is less than a two-hour round trip from the federal building in Boston, which is the length of time Olivia tells Harris she is "going for a massage."