BOSTON -- Massachusetts Gov. Deval Patrick and a congressional leader say security will be tight as thousands of runners and hundreds of thousands of spectators crowd Boston's streets for the annual Marathon.
Patrick tells CBS' "Face the Nation" that Boston may be the safest place in America on Monday.
The governor says officials are striking a balance between more security and maintaining the city's festive spirit.
Patrick won't specify the steps being taken to boost security, but says there will be a "considerably more police presence."
Rep. Michael McCaul, chairman of the House Homeland Security Committee, tells ABC's "This Week" that cameras, police, police dogs and bomb detecting equipment will make Boston "well-fortified."
McCaul, a Republican from Texas, says he is concerned about the possibility of a copycat attack.
Some of the security measures in place for the 118th running of the Boston Marathon on Monday:
— More than 3,500 police officers
— double the usual number
— will be out along the 26.2-mile course, including undercover officers with special training.
— At least 100 strategically positioned video cameras will monitor the crowds.
— Spectators are asked to carry their belongings in clear plastic bags instead of backpacks.
— Spectators who do bring backpacks will be subject to a search.
— Coolers, quilts and other bulky items are discouraged.
— Security will be especially tight close to the finish line.
— More than 50 observation points will be set up near the finish line to monitor the crowd.
— Unregistered runners known as bandits won't be allowed to participate.