mile route beginning at 8:50 a.m. to the finish line on boston s boyle street. monday is patriot s day and a year after the bombings, american runners have never been more moat slativated to finish . renee flanagan hopes to become the first woman to win the boston marathon since 1985. i m sure there s security you can see and security you can t see at this year s race. what do we know about that? of course security will be unlike anything the marathon has seen before. there will be about 3,500 police officers under cover and those you can see, that s double last year. 40 security checkpoints, four times as many canine units and 100 new cameras installed along the boston marathon route. spectators are asked not to bring bags, sus indicates,