Barack Obama has been trying to put the Jeremiah Wright controversy behind him, but Wright himself is having some trouble doing the same — thanks to the media limelight he's faced, he's now had to cancel two separate, high-profile speaking engagements.

A Wright speech planned for last night in Tampa was axed, plus another event for this Sunday in Houston. In the case of the Houston appearance, security concerns were openly cited as the reason for the cancellation.