The United States Supreme Court has held that allegations of a "subjective" chill of first amendment rights, due to the mere existence of the Army's intelligence and data gathering system, did not constitute a justiciable controversy since such allegations are not an adequate substitute for a claim of specific present objective harm or a threat of specific future harm necessary to invoke the judicial power to determine the validity of executive or legislative action.
Laird v. Tatum, 408 U.S. 1 (1972).
John S. Vento,
Constitutional Law - Chilling Effect on First Amendment Rights - Army Surveillance of Civilian Political Activity,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol11/iss3/10