Qumran is on the shore of the Dead Sea, a very hot place. Who would wear clothes made of wool over there? Linen prove that the Qumran residents were not total crazies but normal individuals (although with nutty religious beliefs).
Thousands attend an anti-violence and incitement rally at Tel Aviv's Rabin Square (Haaretz)
from the article: Overlooked relics may help unearth Dead Sea Scrolls' authors