http://news.bbc.co.uk/2/hi/americas/3730364.stm
http://www.cnn.com/2004/ALLPOLITICS/....ap/index.html

His security team required him to wear a bullet-resistant vest.

Of course. The thing is a box between his shoulders on the back, nothing
like a falk jacket. Look at the photos at CNN and BBC. Witnesses saw
there was something in his ear.