https://www.reuters.com/article/us-facebook-politics/ahead-of-u-s-election-facebook-gives-users-some-control-over-how-they-see-political-ads-idUSKBN1Z81A6 >Facebook Inc said on Thursday it was making some changes to its approach to political ads, including allowing users to turn off certain ad-targeting tools, but the updates stop far short of critics' demands and what rival companies have pledged to do.