you will see an enhanced presence of security from boston, state, national guard, law- enforcement parnisolitan boston area. you produce it is even longer. this is to provide comfort to the public who may be using transportation sinners are born about their regular business. we are-- she was the more troopers and national guards and police like to do everyday. the president will be enhanced and we are doing this for the comfort of the public aware looking for cooperation and is not a convince you. you may also see a enhanced presence at logan airport. this is just to get cooperation and to seek out any tips or affirmation. the last about one to say is that there has to be hundreds or not thousands of photos or videos that were made at this finish line. they are sitting out there amongst people who are watching this press conference. i would encourage you to bring forth any thing that you may not think it may be significant but it may have value to this investigation. there are plenty of tip lines that are available and if you call a and someone will follow up on your photograph or video t