"Kerry says not enforcing Syria red line cost the US in Mid East"

"The remark appeared to be the first time Kerry has stated that not following through on the threat to retaliate against Assad for his use of chemical weapons to kill 1,500 people in August 2013 damaged the US' reputation in the region...."

http://www.businessinsider.com/kerry-says-not-enforcing-syria-red-line-cost-the-us-in-mid-east-2016-12