When Jenny Shepard reads Hollis Mann's retirement notice in the paper, the front page has the logo of The Stars and Stripes. When Jethro Gibbs walks in, she closes the paper - the front page as she closes it is The Mini Page, a children's section from the Washington Post.
When ducky and palmer discuss the pictures, ducky writes "Brian Taylor" on the whiteboard.first he puts the dot above the n,then the length of the y changes,the style of the B and the r changes also a few times.clearly ducky has rewritten the name several times during filming.
When Jenny reads about LtCol. Mann's retirement notice the headlines reads "Lt. Colonel Retires After 22 Years". However, in the previous season episode "Grace Period" (4x19) when she visits Gibbs in his basement she tells him that she is "coming up on my 20 years mark next month", so the retirement article is wrong.