Joking aside, Marsar acknowledges he's had a lot to cope with in the past five years.

NPR: After Sept. 11, a Firefighter Answers Call to Lead

Joking aside, the primary reason is probably much more mundane: Pitchers simply have more down time.

WSJ: Mets Find Answer

Joking aside, multiple investigations have been launched to uncover the source of the problem.

FORBES: Horse Meat in Your Burger? Some Brits Are Laughing

All joking aside, this is a really neat idea.

FORBES: Grow Your Own Bike

But joking aside, they were magnificent.

BBC: Davey hails giantkillers Barnsley

All joking aside -- and I know you have a second question, but I just want to focus on this -- lead poisoning, a lot of it from lead paint, from older homes all across the country and all across the Midwest is something that we have to be more aggressive on.

WHITEHOUSE: "White House to Main Street" Town Hall: Elyria, OH