As reported yesterday in the O. Here’s the official statement from Mary Fetsch of TriMet:
TriMet has provided ridership data for years. Post 9/11, the issue of what is sensitive security information (SSI) has changed, and continues to evolve. We were directed to withhold information that was considered SSI. Now that the TSA office in DC has clarified that specific time-of-day ridership information is not considered SSI, we can more easily fulfill data requests.
TriMet Communications Director