Come across a poster like the two above on your commute recently? Laid out in classic MTA style, but adorned with Orwellian imagery and an appropriately ambiguous hashtag, they warn of two possible hazards to your health: an upcoming “airborne non-toxic test” in which the NYPD will disperse “harmless, colorless gas” around the five boroughs, and an at-risk nuclear reactor that’s just 28 miles from NYC.