 In some cases, hackers lock up the hospital's financial and administrative side. At least one rural hospital in Illinois, for example, has had to shut down totally because they couldn't do billing or insurance work or any of that sort of thing. But Agriculture Secretary Tom Bilsack says sometimes hackers have been able to lock up medical equipment that is connected to the Internet. The seriousness of this is that it's not just the business aspect of the operation. It's also the impact it can have on patients.