Mile-long trains carrying millions of gallons of crude have become a common sight in cities around the U.S., raising concern about the possibility of a catastrophic derailment near crowded neighborhoods or critical infrastructure.
In the wake of a half-dozen fiery crashes this year, The Associated Press surveyed nearly a dozen cities with populations of more than 250,000 to gauge how prepared they are to respond to an oil-train derailment.
Emergency officials in every city say they're aware of the threat and are taking steps to address it, but the level of preparedness differs from city to city.
BUFFALO, NEW YORK
— City does not have an emergency plan that specifically addresses oil trains, but says it's developing one.
— City participated in tabletop exercise in 2015 sponsored by CSX and involving several agencies and contractors.