CNN CNN Newsroom With Brooke Baldwin June 1, 2015 18:35:00
What typically happens is when the tumor comes back it becomes more challenging to treat. they have to decide if they want to do an operation again. about 15,000 people or so a year die of these tumors in the united states brooke. they can be very challenging to treat. we've seen this before with senator ted kennedy. the same type of tumor. there's been some progress made using viral therapies, using genetic therapies things like that but as we know in this case it wasn't soon enough for beau biden. brooke back to you. >> sanjay thank you so much. beau biden's death marks yet another time vice...
Source: archive.org