Early indications are that hackers had no access to sensitive information and did no mischief apart from planting malicious files on a site that normally provides audio and video material on public health issues. "Several hundred people" visited the podcast site in time between the malware was uploaded last Thursday and the time the site was taken down a few hours later, CDC spokesman Tom Skinner told AP. Surfers who visited the site recently are urged to scan their PCs for viruses as a precaution. ®