this:
...The Massachusetts investigator said much of the man's information sounds far-fetched and investigators have some doubts about the caller's validity because he has not identified himself.
``A lot of it doesn't make sense and some of it does,'' said the source. ``It's totally uncorroborated. This all began several days ago as a series of phone calls and they don't know who the caller is. There are some parts of it that just don't make sense and other little pieces of it that fall into place. The information is these people that came into the country are going to New York into Boston and the (nuclear) material will follow them.''
The source said there is speculation the caller may have been ripped off by illegal immigrants he helped over the border and is now trying to exact revenge.
``It's very weird. Even if (the Iraqis and Chinese) were going to do something why would they be blabbing to the yahoo smuggling them across the border? You have to wonder if they screwed him on a deal but you have to treat it seriously and the issue is how do you put it out to the public and not get everybody (in a panic)?''
http://news.bostonherald.com/localRegional/view.bg?articleid=64303