Rio Olympics Closing Ceremony August 23, 2016 Smartphone lights illuminate the Olympic flag at the start of the closing ceremony [AP Photo/Natacha Pisarenko]
![Smartphone lights illuminate the Olympic flag at the start of the closing ceremony [AP Photo/Natacha Pisarenko]](http://www.mariabueno.org/wp-content/uploads/2016/08/IMG_4986.jpg)