some things I've learned over the course of this show is:
(Season 1) Don't kill a terrorist's kids by mistake
(Seasons 2,3) when a terrorist won't give you infomation, threaten to kill his kids.
i learned
(season 1-3) - it's ok to give terrorists information if you're a government agent, except if your name is Nina.
More things I learned after watching the season finale:
(Season 2, 3) If you decide to go out with Kim, expect to lose one of your extremeties at some point. (i.e. spanish guy with bad hair, and Chase)
i learned that's it's ok to do drugs and lie to the President if you're a government agent, and if it doesn't work out well, just say "I NEED MORE TIME" repeatedly, and something will save you.