In September 2001, a letter containing anthrax was addressed to him as part of the 2001 anthrax attacks. Brokaw wasn't harmed, but two NBC News employees were infected.
http://en.wikipedia.org/wiki/Tom_Brokawhttp://www.msnbc.msn.com/id/14785359/My anthrax survivor's story
NEW YORK - Every September, like many, I feel sick and frightened around the anniversary of the 9/11 attacks. But it was the weeks following September 11th that would forever change my life. During that time, I was the victim of terrorism when I opened a letter containing a lethal amount of anthrax.
You may remember hearing about Tom Brokaw’s assistant who got sick after coming in contact with a letter containing a deadly amount of anthrax. I was the person who first opened that letter, before Tom's assistant became sick. You have not heard my story.
Around September 18, 2001, I headed to work as a desk assistant at ‘NBC Nightly News.’ One of my jobs was opening Mr. Brokaw’s mail. There was one letter that looked as if it were written by a child. Something seemed unusual. I’d never seen a letter containing a granular substance. I mentioned the strange letter to my friends.
Nothing happened for about 10 days. Then one Friday night my throat began to swell up. A cold, I thought. But it worsened over the weekend. My glands were soon enormous. Monday morning came and my face was barely recognizable. I went to the doctor, who said it was a reaction to my Accutane medication, and I should rest in bed. For the next few days, I felt like an awful virus was running through me.
A few days later, I went back to work, but I still felt a bit off. My glands were still swollen. A week or so after I was sick, Mr. Brokaw’s assistant became sick. Both of our symptoms were unusual. Authorities became involved. When Bob Stevens died at the American Media Building in Florida at the end of September, the pieces slowly began to come together.