Group 1 - The use of temporary staffing, particularly temporary nurses, remains elevated in hospitals five years post-coronavirus pandemic due to attrition and burnout in the sector [3] - Aya Healthcare and Cross Country Healthcare, two major U.S. healthcare staffing companies, announced a $615 million acquisition that was intended to close in the first half of 2025 [4] - The Federal Trade Commission (FTC) identified significant competitive concerns regarding the acquisition, leading to its abandonment after prolonged review [7] Group 2 - The merger's waiting period was extended multiple times due to compliance with antitrust law and requests for additional information from the FTC [5][6] - The 43-day government shutdown starting October 1 delayed the FTC's review process, ultimately exceeding the merger's new termination date [6] - The acquisition was expected to enhance Aya's technology services into non-clinical settings and strengthen both companies' positions in the healthcare staffing market [7]