Subject: News Story about split photons

Last week there was a news story about an experiment
in which a photon was split in half and sent down a 
fiber optic cable which had a "Y" at each end.

According to the news story each photon, when
the half photon came to the "Y" at each end of the cable
for some reason the half phonton choose to take the same branch 
as did it's other half.
  .                   .
 b \_________________/b1
   /       |         \
   a       |          a1 
    1/2    |    1/2 

           . 
Question 1:
How is this possible? That is how does each half photon
know what the other half is doing when in this case
they were 7 miles apart?

Question 2:
How many times can a photon be split and still act 
like a photon?

Re: News Story about split photons