A History of Short Words

From the New York Times Crossword Puzzle

FBI

Sun, 17 Oct '21
Govt. agency that Jimmy Woo works for on "WandaVision"
Tue, 28 Sep '21
Org. enforcing RICO laws
Mon, 23 Aug '21
Grp. with a Most Wanted list
Tue, 25 May '21
Clarice Starling's employer in "The Silence of the Lambs," in brief
Fri, 14 May '21
Govt. org. whose director serves a 10-year term
Sun, 7 Mar '21
Letters on some badges
Mon, 4 Jan '21
"The X-Files" agcy.