" We can see this by realizing that the photons detected at either A or B alone occur completely randomly both in time and in polarization. Consequently, observer A sees no information in his data alone, and likewise with observer B. It is only by later comparing these two random sets of data that a correlation between the two sets can be discovered"
http://faculty.virginia.edu/consciousness/new_page_7...
http://www.ksharpe.com/articles/articledetail.cfm?ar...