I'd like to suggest a copy edit to the latter portion of the second (dependent) clause in the sentence about Bryony Dixon. I believe you should add an article in front of "US . . ." I suggest you rewrite it in one of two possible ways:

either

" . . . a U.S. think tank, Civilization Works." (leaving in the comma)

or

" . . . the U.S. think tank Civilization Works." (taking out the comma)

You might also want to consider adding a link to "Civilization Works."

Just a suggestion.