OK. I went back and reviewed the actual allegations and will stand corrected. Soooo.....
1. We had CS in grenade form, similar to smoke grenades. I placed one in front of a claymore and it spread the CS when detonated. a great means of breaking contact. I did the same thing when initiating ambushes, as well as another claymore with a WP grenade in front of the claymore. The combination of the claymores, CS and WP along with heavy auto fire made for a quick violent ambush and afforded us a good chance of breaking contact.
2. At Khe Sahn we had CS cannister launchers in a line behind the claymores. Each unit could fire a salvo of 20 cannisters.
3. I never ran across pooches but was also prepared for that. Actually we were a little more primitive than BKK and used black and red pepper.