People across the political spectrum can praise wealthy donors’ decisions to give to philanthropic causes.

But even the most well-intentioned donor or charitable group can make huge mistakes. Martin Morse Wooster, senior fellow at the Capital Research Center and contributing editor to Philanthropy magazine, chronicles some of the biggest doozies in the book Great Philanthropic Mistakes, recently revised and expanded for a second edition.

Wooster discussed the book today with the John Locke Foundation’s Shaftesbury Society. In the video clip below, he discusses why the people who lead charitable groups often make mistakes.

2 p.m. update: Click play below to watch the full 44:25 presentation.

You’ll find other John Locke Foundation video presentations here.