sentences:  However, Booth and Brennan discover that Carl is under a Federal witness protection program and is scheduled to testify in two days against KBC Systems, a company he believes is responsible for the deaths of 30 soldiers by knowingly sending defective armor to Iraq.The Justice Department informs them that they have not told Carl about his wife and son lest he decides not to testify.Booth finds out Carl's secret meetings at a motel were the cause of the separation between Carl and his wife.