It has become clear that authorities may be getting closer to pressing charges against other members of Bernie Madoff's familiy, including brother Peter and sons Mark and Andrew. Peter Madoff's lawyers have admitted that he is under criminal investigation, but declined to say for what he is being investigated. The attorney for Mark and Andrew says that the sons continue to cooperate with investigators and that they had no prior knowledge to their father's crimes. This video clip from MSNBC has more details.