Extra-Terrestrial International Authority. A UN-sanctioned organization formed to defend against, and possible exploit extra-terrestrial activities on earth. Reformed in the 90s from FETA, a US centered body whose itself was formed in the 50s to defend against alien threat.
Men In Black? same thing, only way more bureaucratic.
Known ETIA agents are:
It has also been established that Hans Finch was closely affiliated with the ETIA.
They have a research facility at the intersection 30th st. and Rockefeller Ave.
The ETIA figured prominently in an earlier campaign, where the PCs created The Embassy.