The Tenth Circuit has adopted a four-part balancing test to determine when the First Amendment reporter's privilege is extant or defeated (overcome). To overcome a reporter's assertion of the privilege, a party must make a showing of strong need for the information (a showing that the information sought goes to "the heart of the matter" being litigated) and the unavailability of the information from alternative sources. See Silkwood v. Kerr-McGee Corp., 563 F.2d 433, 438 (10th Cir. 1977) (stating that the existence of the privilege "is no longer in doubt"). Application of the privilege varies among the district courts in the Circuit, with very few reported decisions from which to draw broader conclusions or trends.