AIRGAP is the NSA's "non-attribution Internet access" program that allows users to do research on the open internet. In 2005, it was run by "one of the world's largest ISPs," and the system was shared by the whole U.S. intelligence community. Some users were concerned that all of this internet traffic comes from the same IP address, which could be used to attribute internet traffic to the NSA, however technically there were often multiple IP addresses. The NSA is working on building its own new version of AIRGAP, that it doesn't share with the rest of the intelligence community. "Despite rules and warnings to the contrary, all too frequently users will use AIRGAP for registering on web sites or for services, logging into other sites and services and even ordering personal items from on-line vendors. By doing so, these users reveal information about themselves and, potentially, other users on the network. So much for 'non-attribution.'"