What would be the value of more information?

Chris Selley responds to Andre Picard’s column.

Picard offers lots of reasons why he thinks it should be no big deal for Layton to come clean, or why it would be nice. But the aforementioned are the only explanations we see in there for why he actually has a positive obligation to divulge the details — and we’re not even sure the first one’s true. Either the PM or opposition leader can perform his duties or he can’t. What would we do with the excess information?