We don't know - Edit 1
Before modification by Etzel at 21/12/2009 04:41:05 PM
Is it possible for Trollocs to Travel using the TP? Would that be how they could send hundreds of thousands of Trollocs into the heart of the nations, seeing that Rand and company have warded many of the Waygates. Or does any type of Travelling cause constructs to be killed...
But if it is possible, it might be the explanation for the Trollocs near Ebou Dar in TGS, or the appearance of the Super Dark Hound Pack in CoT. Of course, Myrddraal have their own kind of Traveling by using the shadows, and e.g. Slayer can use TAR.
The problem is that also the reason why constructs can't Travel, but e.g. use the Ways, isn't really known.