Crossword clues for The U.S. and Can. are in it 3 lettersAnswerClueNSAU.S. org. hidden in two U.S. state namesATLU.S.-U.K. separatorTUEWhen to 7-Down in the U.S.CIAMI6 : U.K. :: __ : U.S.FEDU.S. enforcerWIE2014 U.S. Women's Open champNIHU.S. medical research agcy.AAFU.S. air arm, onceELSTwo-time U.S. Open winnerFTCU.S. commerce watchdogNSAU.S. eavesdropping org.OSULargest U.S. campus, enrollment-wiseELS1994 U.S. Open champSAN__ Ysidro, busy U.S./Mexico border siteRTEU.S. 1, for oneNSAPart of the U.S. intelligence communityFBIU.S. crime solversNSAU.S. cryptanalysis org.DOLU.S. currencyTEMEnd of the title of the third-in-line successor to the U.S. presidencyLETU.S. Open callNALDefunct U.S. airlineNIHU.S. biomedical research agcy.VOAU.S. govt. broadcasterPSTOnly two U.S. states, Wash. and Cal., are entirely within this zoneNEA3.2 million-member U.S. unionCTY30 U.S. states have one named WashingtonINSU.S. border protectorsELS1997 U.S. Open champDELSecond-smallest U.S. stateATLU.S. seaboardAFLU.S. trade alliance founded in 1886DEMDesignation for many a U.S. 55-DownPROU.S. Open entrantTVAEnergy org. whose board members are confirmed by the U.S. SenateAAUOrg. that once ran U.S. track and fieldKGBRobert Hanssen betrayed the U.S. to itMENMost U.S. senators, Best Director Oscar nominees, and crossword editors, lamentablyGENU.S. Grant or R.E. LeeTWAU.S. airlineSSAU.S. provider of benefitsSEEU.S. National Anthem's fifth wordGNPU.S. economic fig.SOOU.S. -Can. canalsGODWord on all U.S. coinsSETU.S. Open divisionALTAbbr, on some U.S. Route bypass signsTWAErstwhile U.S. carrierAGRU.S. dept. concerned with meat inspectionCIAU.S. equivalent of Britain's MI6