Dr. Stephen Cunnion is the Medical Director for the Potomac Institute for Policy Studies' National Security Health Policy Center. As shortages of H1N1 vaccine continue to plague some areas, Dr. Cunnion says it's important that frustration not cause people to give up on getting vaccinated. He says if you can get the vaccine, get it - even if it's not until well into the flu season. He also says the public reaction to the vaccine shortage may provide a good opportunity for the Centers for Disease Control and Prevention to review its risk communications, before the next crisis hits. Watch Dr. Cunnion's comments here.