similarities between logos for CLUSTER and Debian

[Erik Galicki <erik.galicki@gmail.com>]

Consortium Linking Universities of Science and Technology for Education 
and Research (CLUSTER): http://www.cluster.org/

CLUSTER, but maybe not its logo, appears to pre-date Debian. Given that 
Georgia Tech is a CLUSTER member and a secondary Debian mirror, I'd be 
surprised if the similarity in logos had not been noticed previously.

My apologies if I've wasted time on a known issue.

Thanks.