Since the case is related to whats been called the worst terrorist attack on U.S. soil since 9/11, the stakes of the trial are as high as they are emotional. But how much of what we know about the bombing comes from leaks to the media instead of the normal public channels surrounding a criminal case?

Tsarnaevs lawyers in a May 2 motion argue that the media has been made privy to secret grand jury testimony not yet revealed to them by prosecutors, and want the judge to probe those leaks in a hearing.