But if there's no one to champion the cause, the case gets buried under other priorities.
The UK has played a critical role in championing the case for investment in refugee education and jobs creation.
That program focused heavily on the O. J. Simpson murder trial, and Mr. Rivera eventually championed the case against him.
For a decade, Steven M. Cohen championed the case of David Lemus, convicted of killing a bouncer at the Palladium nightclub in Manhattan in 1990.
"She had two little holes for her nostrils, and her mouth was so melted that only a straw could fit in," said Tehmina Durrani, a prominent Lahore figure who championed the case.
Six weeks later, Mr. Zimmerman was arrested, but only after civil rights leaders championed the case and demonstrators, many wearing hoodies, marched in Sanford, Miami and elsewhere to demand action.
George Gabriel, of Citizens UK which had championed the case, said: "We are delighted with the judgment and look forward to being able to see these families, who have been so cruelly separated by war; reunited and safe.
Last November Bhatti joined Salmaan Taseer in championing the case of Aasia Bibi, a Christian woman who was sentenced to death last November for allegedly committing blasphemy against the prophet Muhammad.
The Financial Times believes Mr Cameron needs to start championing the case for continued EU membership to his own party and the British people.
As a self-proclaimed Thought Leadership Evangelist, I am championing the case for more women thought leaders.
