as director from 2005 to 2009, mike chertoff led the country in blocking would be terrorists.before heading up the department of homeland security, secretary chertoff served as federal judge in the court of appeals for the third circuit. currently as cofounder and executivechairman of the chertoff group he provides high-level strategic counsel to corporate and government leaders on a broad range of security issues. today, we will discuss secretary chertoff's belief that the growth of the internet has made our greatest threats not physical but digital. please welcome secretary chertoff . [applause] >> thank you and i want to say when i saw the gavel i-4 wow, i haven't hadone that close since i was a judge . felt like banging it over there. then i realized when you're on the court of appeals, you don't actually use that. >> i used to use a gavelwhen i presided over thehouse when nancy was speaker and it was five times the size of this and the trick really is that you don't bangthe gavel . you go like this . so , it's always a second to look at what my mother taught me was which was a can make