Guilty verdicts in some of the nation's most high-profile criminal cases have been thrown out recently because of jurors who were not truthful. But despite the recent problems with jurors, legal experts say these cases are the exception.

On Tuesday, a Nashville judge set aside the guilty verdicts against two former Vanderbilt football players who are accused in a dorm room rape. It was prompted by revelations that the jury foreman had failed to disclose that he had been a victim of a sex crime.

Earlier this month, a federal appeals court ordered a retrial for a former Deutsche Bank broker, who is accused in what prosecutors have called the largest criminal tax fraud in history. The court found that a juror faked her identity to get on the jury.