eadusseau on "[Plugin: WP Super Cache] Performance Report says to "Leverage browser caching""

I have wpsupercache installed and set-up, and it seems to be working well for me, but performance reporting websites claim that I am not using browser caching.

The Scan: http://gtmetrix.com/reports/www.jacksworld.org/N58Uoque

My Site: http://www.jacksworld.org

Any ideas?

https://wordpress.org/plugins/wp-super-cache/