ferc limits access pipeline maps note fyi may see less less information available federal web sites near term ferc limits public access pipe transmission maps amid concerns potential terrorist attacks energy facilities federal energy regulatory commission limiting public access maps natural gas pipelines electric transmission lines statement policy commission said would longer make available public maps energy facilities internet records information management system rims public reference room headquarters washington dc persons wishing view maps however make requests freedom information act foia commission ferc staff urged respond timely legitimate requests documents commission said ban would remain effect indefinitely directed staff report impact action agency business within 90 days move ferc drastic federal agencies nuclear regulatory commission closed entire web site last week precaution given anthrax scares capitol hill elsewhere spokeswoman said commission also instructed alert security immediately suspicious envelopes packages