CNN 2010-04-22（在线收听）

15 years ago today; 168 people killed, 19 of them children. You saw there one of the troopers who stepped up. We're looking at some images here now.

The trooper who stepped up is a guy who actually placed McVeigh under arrest back then, who came up to led us in the 168 seconds of silence. Again, can you believe it was 15 years ago today, one of the moments when a lot of people if you are of a certain age can remember where you were when you got word. This changed the way that people viewed terrorism, domestic terrorism and viewed the way and just how susceptible a.易受影响的；能经受的we were to such attacks, also tapped into the anger that many people had, a growing anger and militias and hate groups. So it just really opened people's eyes to a lot of things going on in the country.

Certainly, we will never be the same again. That was a time when at the time was the deadliest terror attack we had ever seen, and of course, many years later came 9/11. But again, among those 168 were 19 children. They were at a day care center inside the Murrah Federal Building that day when that blasts sheared pretty much a whole side of that building off. Somehow though six of the children survived. Here's the story of one of them, P.J. Allen, in his own words.

MALE: Holy cow. FEMALE: At the time of the bombing, P.J. was 18 months. He had inhaled v.吸入(气体等)，吸(烟)much of the gas from the bombing. His lungs were severely damaged. Irreparable.a.无法修复的，不能挽回的

Male：This is albuterol[化] 沙丁胺醇. It opens up my lungs. If god could save me from second and third-degree burns and a broken arm he must have something special planned.

P.J. ALLEN: I'm P.J. Allen. I'm 16 years old. I would like to be a mechanical engineer. I like math. It fascinates me.

FEMALE: OK. Looks like you're doing ,you're doing good.

ALLEN: I got my trach 气管out in '06. I felt relieved to have it gone. Over time my injuries have healed and I'm breathing a little bit better. It's like a sign of growth.

FEMALE: I'm, I'm so happy to go home.ALLEN: I don't remember what happened since I was so little. So in a way it's like it never happened, but it did. I try to remember those who didn't make it and how their families were affected. When the explosion happened there was chaos and everybody was scared, but now it's a beautiful place to remember those who died. I thank god every day that I made it and the others as well and that we're doing