All: that Mueller got email from IRA troll Irina Kaverzina is not that crazy. As I've noted, FSB Yahoo hack plotters used Yahoo. https://www.emptywheel.net/2017/03/18/why-would-an-fsb-officer-use-a-yahoo-email-account-to-spy-for-russia/ … Manafort handler Kilimnik uses Gmail. https://www.emptywheel.net/2018/01/03/paul-manafort-has-conducted-his-oleg-deripaska-dalliances-on-prism-providers/ … Turns out obvious RU targets use PRISM infra all the time