♪ ♪ jon: as we remember that thousands of americans who headed off to work or school on that morning 12 years ago today, they suddenly died. their new concerns about how safe americans are now. a new poll shows 51% of americans feel safer than before the september 11 attack, 30% feel that they are less safe than before. 9% of those polled said they felt safety was the same. in november 2002, the department of homeland security was created. right now from a senate committee is holding a hearing on challenges. they're also looking at emerging threats. we are joined by the second person that had the department, homeland security secretary michael chertoff and he is also the cofounder of the chertoff