Incompletely verified. Google Snippet View does not show the full quote itself on p. 115 but does allow partial hits.

"In searching for a common enemy against whom we", and "we can unite, we came up with the idea that pollution, the threat of global warming, water shortages, famine and the like, would fit the bill" both are found on page 115 of the book. This is probably just a search limitation.

Interestingly the phrase "we can unite, we came up with the idea that" also is found on pages 11 and 146, though context is not visible!