For example, Freeman has view the Middle East through the prism of one of Foggy Bottom's most successful Arabists.

CENTERFORSECURITYPOLICY: Garbage in, garbage out

Three firms are currently bidding for the chance to operate the service - one of which is Prism Rail who holds two of the franchises, Wales and West and the Cardiff Railway Company.

BBC: News Online

And summits such as these, where 33 countries participate, each one bringing to the table their own interest, each one bringing their own prism through which they look at things, but the positive thing is that we discuss these issues candidly and productively -- a number of issues that were not even on the table before.

WHITEHOUSE: President Obama and President Santos Hold a Press Conference | The White House