He was not talking about sales presentation of course, but… In the words of Julien Clerc, one of the best-known French singers: “What’s the use of an unarmed song?” (said the Chileans, arms spread wide, fists clenched…) You can listen to this song on YouTube: [youtube_sc url= http://www.youtube.com/watch?v=HmnVfZslf9A width=450 rel=0 fs=1] It makes me wonder the …