Originally posted by Darth Somebody
Now, as with Kreia - Sidious is a natural liar and deceiver. If Plagueis was attuned to the Force, and the legend was true - and IF he had the ability to influence midi-chlorians - then he possesses an ability that none of the Ancient Sith Lords had.Like Janus said. Palpatine might have been forced to kill him in his sleep - or Palpatine might just have wanted to be the sneaky bastard that he is and take as less chances as possible.
Sidious is a cool lamer who will kill you when you sleep, he's just like that.
But as we don't know how strong this Plageius dude was we can only assume, but I would bet my money on Ragnos.