500 others injured. still, the head of the association of american railroads tells abc news that the fear is largely unfounded. and that 99.998% of all hazmat shipments reach their destination safely. alex perez, abc news, columbus, ohio. in other news this morning, a frightening scene on the streets of new york. two window washers dangled for almost an hour outside the 42nd floor of a manhattan high rise. all that after their motorized scaffolding broke down. fire crews had to cut through glass in order to reach the two men and finally pull them inside. they were examined by doctors. amazingly they were not injured. >> mm. >> lucky guys. >> can't believe that. >> never understood how those guys do that job. you know what i mean? like just -- the window washers on these huge buildings we have here in new york, i don't know how they work up the guts to do that. >> after my son actually knocked his golf clubs out of their 16th