American Airlines specifies the Bible as an offensive item, but the Qur'an gets a pass. From [1] WND, with thanks to EPG:

Some Christian employees of American Airlines think the company's anti-harassment policies – which include a warning not to place a Bible in a Muslim's cubicle – discriminate against them.

The warning was included in a written reminder of the company's workplace policies. One of the examples of what might be "considered to be harassment under company policy" was:

"Placing a Bible in a Muslim co-worker's cubicle, which could support a claim for harassment."

One employee who contacted WND noted, "It makes no mention of a Quran being classified as offensive, the Bhagavad-Gita or any other religious book – EXCEPT the Bible. Obviously, these rules have an anti-Christian bias that needs to be remedied."