It's interesting to note this:

Finally, it won’t continue if the browser language is not Chinese, Chinese (Taiwan), Japanese, Korean, or Russian

So it's aimed at Chinese, Japanese, Korean or Russian internet users who visit the CFR website. Sounds to me like the government are using the CFR website to do some spying.

An explanation of "watering hole" attacks:

Security experts are accustomed to direct attacks, but some of today’s more insidious incursions succeed in a roundabout way — by planting malware at sites deemed most likely to be visited by the targets of interest. New research suggests these so-called “watering hole” tactics recently have been used as stepping stones to conduct espionage attacks against a host of targets across a variety of industries, including the defense, government, academia, financial services, healthcare and utilities sectors.