Data security specialists and federal law enforcement officials are intensifying efforts to combat cyberterrorism since September 11. On Wednesday, a group gathered to discuss the security of corporate computer systems at an information technology conference held in Minneapolis. They offered advice to corporate security personnel on how to protect their data from hackers, terrorists and viruses. And they say new anti-terrorist legislation will make it easier for corporations to catch people who try to infiltrate their networks. Minnesota Public Radio's Brandt Williams reports