Cameron Douglas, the son of famed actor Michael Douglas, was sentenced in 2010 to five years behind bars for participating in drug distribution. Despite his long-time problem with drug addiction, Cameron was not given any drug treatment in prison. While behind bars, Mr. Douglas relapsed on drugs. He was caught with very small amounts of opioids for personal use, and as a result, the judge added another four-and-a-half years to his sentence. This may be the longest-ever federal prison sentence imposed for the simple possession drugs for personal use behind bars.