Just passed through Atlanta's Hartsfield-Jackson airport and saw one of these cabins.
Touted as a convenience to nursing mothers, but I am really not so sure.
Years ago, I flew variously to New York, Moscow and Hong Kong with my breastfed 5 month old - and managed perfectly well in those various airports.
Are "lactation suites" really an improvement??
(BTW, Atlanta is an airport of awesome immigration inefficiency that I urge all to avoid.)