This is an (admittedly huge) list of words that supposedly cause the NSA to flag you as a potential terrorist if you over-use them in an email.
We found this on Reddit, where James Bamford, a veteran reporter with 30 years experience covering the NSA, is answering questions from the community. He just wrote a big profile for Wired on NSA director Keith Alexander that's really good and well worth a read.
This list comes from Reddit user GloriousDawn, who found it on Attrition.org, a site that purports to follow the security industry, but the page was last updated in 1998. Take it with a grain of salt.
You may want to peruse this entire list yourself, but here are some of our favorites that stick out:
  • dictionary
  • sweeping
  • ionosphere
  • military intelligence
  • Steve Case
  • Scully
And the full list for your browsing pleasure:
Waihopai, INFOSEC, Information Security, Information Warfare, IW, IS, Priavacy, Information Terrorism, Terrorism Defensive Information, Defense Information Warfare, Offensive Information, Offensive Information Warfare, National Information Infrastructure, InfoSec, Reno, Compsec, Computer Terrorism, Firewalls, Secure Internet Connections, ISS, Passwords, DefCon V, Hackers, Encryption, Espionage, USDOJ, NSA, CIA, S/Key, SSL, FBI, Secert Service, USSS, Defcon, Military, White House, Undercover, NCCS, Mayfly, PGP, PEM, RSA, Perl-RSA, MSNBC, bet, AOL, AOL TOS, CIS, CBOT, AIMSX, STARLAN, 3B2, BITNET, COSMOS, DATTA, E911, FCIC, HTCIA, IACIS, UT/RUS, JANET, JICC, ReMOB, LEETAC, UTU, VNET, BRLO, BZ, CANSLO, CBNRC, CIDA, JAVA, Active X, Compsec 97, LLC, DERA, Mavricks, Meta-hackers, ^?, Steve Case, Tools, Telex, Military Intelligence, Scully, Flame, Infowar, Bubba, Freeh, Archives, Sundevil, jack, Investigation, ISACA, NCSA, spook words, Verisign, Secure, ASIO, Lebed, ICE, NRO, Lexis-Nexis, NSCT, SCIF, FLiR, Lacrosse, Flashbangs, HRT, DIA, USCOI, CID, BOP, FINCEN, FLETC, NIJ, ACC, AFSPC, BMDO, NAVWAN, NRL, RL, NAVWCWPNS, NSWC, USAFA, AHPCRC, ARPA, LABLINK, USACIL, USCG, NRC, ~, CDC, DOE, FMS, HPCC, NTIS, SEL, USCODE, CISE, SIRC, CIM, ISN, DJC, SGC, UNCPCJ, CFC, DREO, CDA, DRA, SHAPE, SACLANT, BECCA, DCJFTF, HALO, HAHO, FKS, 868, GCHQ, DITSA, SORT, AMEMB, NSG, HIC, EDI, SAS, SBS, UDT, GOE, DOE, GEO, Masuda, Forte, AT, GIGN, Exon Shell, CQB, CONUS, CTU, RCMP, GRU, SASR, GSG-9, 22nd SAS, GEOS, EADA, BBE, STEP, Echelon, Dictionary, MD2, MD4, MDA, MYK, 747,777, 767, MI5, 737, MI6, 757, Kh-11, Shayet-13, SADMS, Spetznaz, Recce, 707, CIO, NOCS, Halcon, Duress, RAID, Psyops, grom, D-11, SERT, VIP, ARC, S.E.T. Team, MP5k, DREC, DEVGRP, DF, DSD, FDM, GRU, LRTS, SIGDEV, NACSI, PSAC, PTT, RFI, SIGDASYS, TDM. SUKLO, SUSLO, TELINT, TEXTA. ELF, LF, MF, VHF, UHF, SHF, SASP, WANK, Colonel, domestic disruption, smuggle, 15kg, nitrate, Pretoria, M-14, enigma, Bletchley Park, Clandestine, nkvd, argus, afsatcom, CQB, NVD, Counter Terrorism Security, Rapid Reaction, Corporate Security, Police, sniper, PPS, ASIS, ASLET, TSCM, Security Consulting, High Security, Security Evaluation, Electronic Surveillance, MI-17, Counterterrorism, spies, eavesdropping, debugging, interception, COCOT, rhost, rhosts, SETA, Amherst, Broadside, Capricorn, Gamma, Gorizont, Guppy, Ionosphere, Mole, Keyhole, Kilderkin, Artichoke, Badger, Cornflower, Daisy, Egret, Iris, Hollyhock, Jasmine, Juile, Vinnell, B.D.M.,Sphinx, Stephanie, Reflection, Spoke, Talent, Trump, FX, FXR, IMF, POCSAG, Covert Video, Intiso, r00t, lock picking, Beyond Hope, csystems, passwd, 2600 Magazine, Competitor, EO, Chan, Alouette,executive, Event Security, Mace, Cap-Stun, stakeout, ninja, ASIS, ISA, EOD, Oscor, Merlin, NTT, SL-1, Rolm, TIE, Tie-fighter, PBX, SLI, NTT, MSCJ, MIT, 69, RIT, Time, MSEE, Cable & Wireless, CSE, Embassy, ETA, Porno, Fax, finks, Fax encryption, white noise, pink noise, CRA, M.P.R.I., top secret, Mossberg, 50BMG, Macintosh Security, Macintosh Internet Security, Macintosh Firewalls, Unix Security, VIP Protection, SIG, sweep, Medco, TRD, TDR, sweeping, TELINT, Audiotel, Harvard, 1080H, SWS, Asset, Satellite imagery, force, Cypherpunks, Coderpunks, TRW, remailers, replay, redheads, RX-7, explicit, FLAME, Pornstars, AVN, Playboy, Anonymous, Sex, chaining, codes, Nuclear, 20, subversives, SLIP, toad, fish, data havens, unix, c, a, b, d, the, Elvis, quiche, DES, 1*, NATIA, NATOA, sneakers, counterintelligence, industrial espionage, PI, TSCI, industrial intelligence, H.N.P., Juiliett Class Submarine, Locks, loch, Ingram Mac-10, sigvoice, ssa, E.O.D., SEMTEX, penrep, racal, OTP, OSS, Blowpipe, CCS, GSA, Kilo Class, squib, primacord, RSP, Becker, Nerd, fangs, Austin, Comirex, GPMG, Speakeasy, humint, GEODSS, SORO, M5, ANC, zone, SBI, DSS, S.A.I.C., Minox, Keyhole, SAR, Rand Corporation, Wackenhutt, EO, Wackendude, mol, Hillal, GGL, CTU, botux, Virii, CCC, Blacklisted 411, Internet Underground, XS4ALL, Retinal Fetish, Fetish, Yobie, CTP, CATO, Phon-e, Chicago Posse, l0ck, spook keywords, PLA, TDYC, W3, CUD, CdC, Weekly World News, Zen, World Domination, Dead, GRU, M72750, Salsa, 7, Blowfish, Gorelick, Glock, Ft. Meade, press-release, Indigo, wire transfer, e-cash, Bubba the Love Sponge, Digicash, zip, SWAT, Ortega, PPP, crypto-anarchy, AT&T, SGI, SUN, MCI, Blacknet, Middleman, KLM, Blackbird, plutonium, Texas, jihad, SDI, Uzi, Fort Meade, supercomputer, bullion, 3, Blackmednet, Propaganda, ABC, Satellite phones, Planet-1, cryptanalysis, nuclear, FBI, Panama, fissionable, Sears Tower, NORAD, Delta Force, SEAL, virtual, Dolch, secure shell, screws, Black-Ops, Area51, SABC, basement, data-haven, black-bag, TEMPSET, Goodwin, rebels, ID, MD5, IDEA, garbage, market, beef, Stego, unclassified, utopia, orthodox, Alica, SHA, Global, gorilla, Bob, Pseudonyms, MITM, Gray Data, VLSI, mega, Leitrim, Yakima, Sugar Grove, Cowboy, Gist, 8182, Gatt, Platform, 1911, Geraldton, UKUSA, veggie, 3848, Morwenstow, Consul, Oratory, Pine Gap, Menwith, Mantis, DSD, BVD, 1984, Flintlock, cybercash, government, hate, speedbump, illuminati, president, freedom, cocaine, $, Roswell, ESN, COS, E.T., credit card, b9, fraud, assasinate, virus, anarchy, rogue, mailbomb, 888, Chelsea, 1997, Whitewater, MOD, York, plutonium, William Gates, clone, BATF, SGDN, Nike, Atlas, Delta, TWA, Kiwi, PGP 2.6.2., PGP 5.0i, PGP 5.1, siliconpimp, Lynch, 414, Face, Pixar, IRIDF, eternity server, Skytel, Yukon, Templeton, LUK, Cohiba, Soros, Standford, niche, 51, H&K, USP, ^, sardine, bank, EUB, USP, PCS, NRO, Red Cell, Glock 26, snuffle, Patel, package, ISI, INR, INS, IRS, GRU, RUOP, GSS, NSP, SRI, Ronco, Armani, BOSS, Chobetsu, FBIS, BND, SISDE, FSB, BfV, IB, froglegs, JITEM, SADF, advise, TUSA, HoHoCon, SISMI, FIS, MSW, Spyderco, UOP, SSCI, NIMA, MOIS, SVR, SIN, advisors, SAP, OAU, PFS, Aladdin, chameleon man, Hutsul, CESID, Bess, rail gun, Peering, 17, 312, NB, CBM, CTP, Sardine, SBIRS, SGDN, ADIU, DEADBEEF, IDP, IDF, Halibut, SONANGOL, Flu, &, Loin, PGP 5.53, EG&G, AIEWS, AMW, WORM, MP5K-SD, 1071, WINGS, cdi, DynCorp, UXO, Ti, THAAD, package, chosen, PRIME, SURVIAC