A new book says Mia Farrow, George Clooney and other Hollywood celebrities may have done more to prolong the suffering of Darfur than resolve the crisis in Sudan's war-torn region.
 
The problem is not the publicity they bring, but their agenda, says Rob Crilly, author of Saving Darfur, Everyone's Favourite African War.
 
"My concern is when they get too involved in proposing solutions and they become too wedded to one way of doing things,” said Crilly, now on a book tour.