As I watched almost all episodes of The X-Files and both movies I couldn't understand one thing.
If Mulder was so dangerous to the Syndicate, why did they not just kill him? The Syndicate could be so powerful to do this with minimal effort. Ok, they did not want to make him a martyr, but he could have a car accident or something.
I can only imagine that the Cigarette Smoking Man wanted him, as his probable son, to be on his place, but I'm not sure about this. But he was able to kill Jeffrey Spender, his other son.
Then in the 9th season Mulder (as maybe David Duchovny was not wanting to star more) is hiding because they are after them. Why didn't the Syndicate (or Aliens) kill him before?