Also, once there, "Never say that you do not do suicide work, or that you have special conditions in which you can only do a certain work, or that you want to engage the enemy directly without taking watch or night shifts."
http://siteinstitute.org/bin/articles.cgi?ID=publications56205&Category=publications&Subcategory=0
Yep, jihadis get your walkmans and no one will know what you're about.