Interesting remarks by Brennan in 2016:

https:// www.cia.gov/news-information/speeches-testimony/2016-speeches-testimony/director-brennan-speaks-at-the-council-on-foreign-relations.html

>As former Defense Secretary and CIA Director Bob Gates is fond of saying, “When intelligence officers smell flowers, they look around for a coffin.” That remains a pretty good depiction of our intelligence mindset.

>One example—again taking a page from the biotech and life-sciences sectors—is how a wide range of breakthroughs that potentially could extend life expectancy, such as new methods of fighting cancer and a greater understanding of the ageing process, could reinforce the trend toward older populations in advanced nations. Some of the world’s leading economies could face stronger headwinds from having significantly larger proportions of retired people relative to working-age citizens.

Interesting perspective on availability of cancer cures from head of the CIA.

>Another example is the array of technologies—often referred to collectively as geoengineering—that potentially could help reverse the warming effects of global climate change. One that has gained my personal attention is stratospheric aerosol injection, or SAI, a method of seeding the stratosphere with particles that can help reflect the sun’s heat, in much the same way that volcanic eruptions do.

>On the geopolitical side, the technology’s potential to alter weather patterns and benefit certain regions at the expense of others could trigger sharp opposition by some nations.

No further comment needed.