Read this Weekly Standard article talking about our societies views toward commitment. Here's a sample of some of the new marriage vows replacing "'til death do us part."
Noble: "For as long as our marriage may serve the greater good."
Poetic: "For as long as our love shall last."
Prosaic: "For as long as we continue to love each other."
Clock watchers: "Until our time together is over."
Note the vacuous nature of each of these. The article ties the idea back into our lack of commitment to prosecuting the war on terror (or, as it was recently re-named, the "Global Struggle Against Violent Extremism" as this Slate article explains). I've said for a long time, that most of our societies problems stems from a lack of discipline (to which I'm certainly not immune [Exhibit A: the eleventh month period in which this was not updated]).