What are the motifs in House of Sand and Fog by Andre Dubus III?

Justice and the lack of it is a recurring idea in the story. Justice does not prevail in this novel, because no amount of good intentions suffice. Lester muddles through Part II of the book, blinded initially by his love for Kathy and later, at least in part, from lack of sleep and anger at the chasm between Kathy's and Behrani's relative capitol assets. He is blinded ultimately though, because he is a military man: for example, he fears the Colonel isn't taking him seriously; he didn't think the Colonel's pride would allow this to slide; he doesn't move out of Behrani's line of vision when he's parallel parking because doing so would be simple courtesy.