Detailed text transcripts for TV channel - FOXNEWS - 20130428:21:06:00
Assure there was no ongoing public danger. >>heather: what other ways could the investigation still be hampered? >>reporter: authorities are zeroing in on tamerlan tsarnaev's trip to russia. did he have help and training when he was there? they say the russians are not being completely cooperative. >> the big unknown is still the six months, over six months, in russia. clearly, that is where they went from the process of radical ization to -- the older brother -- to violence. there is a lot we don't know. many say the russians need to step up to the plate and provide us better information. the...
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