Continuity mistake: On the tombstone in the previous episode, Michael's date of death is 11.4.2005. But in this episode, when Linc goes to the graveyard to visit Michael's grave, his date of death is 11.4.2010. It is also a different grave from the original, as the original was in South America beside the beach, and here we are led to believe it is in New York. (00:50:50)
Trivia: S4E11: (spoiler) The Scylla alarm on the General's computer is visible on screen for a second or two. Below the flashing word 'alarm', it says it is in section AA-23. That's also the designation of the prison block where Princess Leia is being held in Star Wars. This was certainly done intentionally, but is also easy to miss.