Although the photo caption refers to the snail, the article itself doesn't mention that "shablul" remains a popular term for the at-sign. And, by the way, BBN Technologies didn't exist at the time. The name morphed log afterwards. The proper attribution is Bolt Beranek & Newman.
18 Turkish journalists face prison for 'terror propaganda' (AP)
from the article: Word of the day / Krukhit - The 'go to' word that just wouldn't fly