Why Is Mat Staver Refusing to Comment on Lisa Miller?

As I've been pointing out throughout this week, Mat Staver of Liberty Counsel has been consistently "unavaliable for comment" ever since Lisa Miller fled with her daughter last week.

But today he showed up on Janet Porter's radio program to talk about the Proposition 8 suit in California and healthcare reform, though the topic of Miller's disappearance conveniently never came up.

Staver is obviously available and willing to comment on these issue, so why is he refusing to say a single thing about Miller and her disappearance. 

Just asking.