Could Nathan know about Peter?

Has it been said so far (apart from Nathan's statements to other characters, which could be lies) that Nathan thinks Peter is dead?

Could he and the Haitian (say) have bundled him into that cargo container for his own protection? Get him out of the country while Nathan and persons unknown set about dismantling the Company until it is safe for him to

Does Nathan even know the Haitian?

Everyone seems to believe that he is dead.

However, no death certificate has been shown, no body identified, and no funeral described.

It's possible. However, I would say that Nathan's documented behavior of drunkenness, the fact that he drove his wife and children away from him, his isolation from family and friends, and the visions that he seems to have when he's alone all point to the fact that he is suffering from guilt in the extreme. If he believed Peter to be alive, the private stuff, at the very least, wouldn't be occurring.

Nathan escaped from TH & HRG early in season 1, so he at least knows *of* him. How much more he knows is anyone's guess. We don't know what happened after Kirby Plaza, especially how much interaction there was between the uninjured survivors, and we don't know if Nathan showed back up fairly soon after those events. Thus, I guess we'll just have to wait for the forthcoming 'Four Months Ago' episode.

The Haitian tried to take him in Las Vegas to be bagged and tagged, then he flew off

I think SOMEONE knows where Peter is, and locked him in the cargo box.

then why did he go on a drunken binge.

What I'd like to know is if the Haitian can neutralize powers, then would Nathan or Wes essentially fall from the sky if the Haitian activated his power while they were flying? I think that'd be a pretty funny way for them to die.

How would the Haitian get next to them while they're flying?

Also an unlikely one given the Haitian's range limit.

Could it be that the cargo box functioned like a microwave oven, a metal shell that contains the radiation and keeping the outside safe?