Didn't see the Papal Mass in DC, so I won't comment on it.
For me, the most important part of the trip so far was this. Good. Essential, in fact. A big thanks to Cardinal O'Malley for bringing this to the fore.
The Pope is throwing some heavy hints the American episcopate's way. Here's hoping they listen. Penance and restitution for the mangled lives of their victims would be a good start.