There’s a lot of really interesting stuff in Salt, but it has far more potential than it reaches. The morality and temptation of using WMDs and biological weapons are explored, but the morality and temptation of controlling people’s thoughts and actions is not. The cyclical nature of war and risks of charismatic leaders are dealt with, but the Dwellers act as noble savages, lacking enough substance to really balance out the conflict-ridden society of the humans. The book is at its best when dealing with Hari’s father; it uses him to delve into mob mentality, the political expediency of lies and betrayal, the affect slavery and oppression have on the mind, and the way hatred is generalized over a group of people. Hari and Pearl are as much of a mixed bag as the book; they do come to realize that many of their assumptions are groundless and they do mature, but it felt rushed. And then they get together for no other reason than the assumption that if there are opposite-gendered protagonists, they must have romance. Or at least (off-page) sex; it’s not really well enough developed to be romance. They have no chemistry and there is no buildup, and then all of a sudden they are together. With the very heavy implication that they are a perfect pair and will be together forever. My eyes rolled.The first in a trilogy, Salt does something that seems to be a novelty these days: it ends. No abruptly cliffhanger, no introducing new twists in the last ten pages, no looming sense of running out of time as the pages dwindle. Just, this part of their lives is ending; they’re moving on to a new one. I have no idea in what direction he’s going to take books two and three and that’s refreshing.