Three codes were hidden in the HTML source of the FINAL THOUGHTS BY HANK JOHNSON post on the Investigate Ingress blog
[1] mhihernssnzieefenssifititiff
[2] nstrmoehzfntseitwenfycktftze
[3] nrsiozuiobecunojtrznxfbeokidf
So far no solve has been found. Post your solve or any clues that you might have.