The Court thrice states that the material witness warrant for al-Kidd’s arrest was “based on individualized suspicion.’’
Ante, at 738, 740, 179 L. Ed. 2d, at 1157, 1158. The word “suspicion,” however, ordinarily indicates that the person suspected has engaged in wrongdoing. See Black’s Law Dictionary 1585 (9th ed. 2009) (defining “reasonable suspicion” to mean “[a] particularized and objective basis, supported by specific and articulable facts, for suspecting a person of criminal activity”). Material witness status does not “involv[e] suspicion, or lack of suspicion,” of the individual so identified. See
Illinois v.
Lidster, 540 U.S. 419, 424-425, 124 S. Ct. 885, 157 L. Ed. 2d 843 (2004). This Court’s decisions, until today, have uniformly used the term “individualized suspicion” to mean “individualized suspicion
of wrongdoing." See
Indianapolis v.
Edmond, 531 U.S. 32, 37, 121 S. Ct. 447, 148 L. Ed. 2d 333 (2000) (emphasis added);
Chandler v.
Miller, 520 U.S. 305, 313, 117 S. Ct. 1295, 137 L. Ed. 2d 513 (1997) (same). See also,
e.g., Brigham City v.
Stuart, 547 U.S. 398, 405, 126 S. Ct. 1943, 164 L. Ed. 2d 650 (2006) (referring to “programmatic searches conducted without individualized suspicion—such as checkpoints to combat drunk driving or drug trafficking”);
Board of Ed. of Independent School Dist. No. 92 of Pottawatomie Cty. v.
Earls, 536 U.S. 822, 830, 122 S. Ct. 2559, 153 L. Ed. 2d 735 (2002) (“finding of individualized suspicion may not be necessary when a school conducts drug testing”);
Whren v.
United States, 517 U.S. 806, 817-818, 116 S. Ct. 1769, 135 L. Ed. 2d 89 (1996) (observed traffic violations give rise to individualized suspicion);
Michigan Dept. of State Police v.
Sitz, 496 U.S. 444, 451, 110 S. Ct. 2481, 110 L. Ed. 2d 412 (1990) (“Detention of particular motorists for more extensive field sobriety testing may require satisfaction of an individualized suspicion standard.”);
Maryland v.
Buie, 494 U.S. 325, 334-335, n. 2, 110 S. Ct. 1093, 108 L. Ed. 2d 276 (1990)
(“Terry [v. Ohio, 392 U.S. 1, 88 S. Ct. 1868, 20 L. Ed. 2d 889 (1968),] requires reasonable, individualized suspicion before a frisk for weapons can be conducted.”);
Treasury Employees v.
Von Raab, 489 U.S. 656, 668, 109 S. Ct. 1384, 103 L. Ed. 2d 685 (1989) (“[I]n certain limited circumstances, the Government’s need to discover . . . latent or hidden conditions, or to prevent their development, is sufficiently compelling to justify [search that intrudes] on privacy . . . without any measure of individualized suspicion.”);
O’Connor v.
Ortega, 480 U.S. 709, 726, 107 S. Ct. 1492, 94 L. Ed. 2d 714 (1987) (“petitioners had an ‘individualized suspicion’ of misconduct by Dr. Ortega”);
United States v.
Montoya de Hernandez, 473 U.S. 531, 538, 105 S. Ct. 3304, 87 L. Ed. 2d 381 (1985) (“Automotive travelers may be stopped at fixed checkpoints near the border without individualized suspicion . .
"); New Jersey v.
T.L.O., 469 U.S. 325, 342, n. 8, 105 S. Ct. 733, 83 L. Ed. 2d 720 (1985) (“the search of T. L. O.’s purse was based upon an individualized suspicion that she had violated school rules”);
Michigan v.
Summers, 452 U.S. *1165692, 699, n. 9, 101 S. Ct. 2587, 69 L. Ed. 2d 340 (1981) (“police executing a search warrant at a tavern could not . . . frisk a patron unless the officers had individualized suspicion that the patron might be armed or dangerous’’). The Court’s suggestion that the term “individualized suspicion’’ is more commonly associated with “know[ing] something about [a] crime’’ or “throwing ... a surprise birthday party’’ than with criminal suspects,
ante, at 738, n. 2, 179 L. Ed. 2d, at 1157 (internal quotation marks omitted), is hardly credible. The import of the term in legal argot is not genuinely debatable. When the evening news reports that a murder “suspect” is on the loose, the viewer is meant to be on the lookout for the perpetrator, not the witness. Ashcroft understood the term as lawyers commonly do: He spoke of detaining material witnesses as a means to “tak[e]
suspected terrorists off the street.” App. 41 (internal quotation marks omitted).