Marty read the email with a sick feeling in the pit of his stomach. None of it boded well, least of all the fact things were bad enough the Director was actually telling him about letters in case he didn't make it. Sighing, he pushed that feeling aside as something to deal with if it happened and not worry about in the immediate.
The rest...
From: Deeks, Marty To: Vance, Leon Subject: Re: Future
Great. Our life is now an R.E.M. song. Understood, Sir.
As to the corollary...do we really have a choice? There are very few people we can warn, under the circumstances. Whether we want to or not, it's our duty to give them a heads up.