Q: What happened to the "secret" tunnel in the middle of the stadium floor where performers popped up from during the opening of the 1996 Atlanta Olympics? It seems if it is still around, it would be somewhere in center field at Turner Field. — Bob Parker, Atlanta

A: The tunnel was filled in during the conversion from the Olympic configuration to a Major League Baseball facility, a Braves spokesperson told Q&A on the News in an e-mail. "The tunnel entrance was below Scouts Alley and the exit was under the outfield stands," the spokesperson wrote.

Q: What's the difference in mission and function of the federal Department of Energy and the U.S. Energy Information Administration? When was the EIA established? — Lance DeLoach, Thomaston

A: The U.S. Energy Information Administration (EIA) is the statistical and analytical agency within the U.S. Department of Energy, according to its website at www.eia.gov. The EIA, established in 1977 by the Department of Energy Organization Act, serves as the "primary federal government authority on energy statistics and analysis, building upon systems and organizations first established in 1974 following the oil market disruption of 1973," according to its website. EIA is described as the nation's premier source of energy information. It collects, analyzes and disseminates independent and impartial information to "promote sound policymaking, efficient markets and public understanding of energy and its interaction with the economy and the environment." By law, the EIA's data, analyses and forecasts are independent of approval by any other federal employee or officer.

Lori Johnston wrote this column. Do you have a question about the news? We’ll try to get the answer. Call 404-222-2002 or e-mail q&a@ajc.com (include name, phone and city).