 And United States lawmakers are holding down a proposal for the sale of attack helicopters to Nigeria amid mountain concerns about the government's human rights record. The deal is worth $875 million and involves 12 AH-1 Cobra attack helicopters, 28 helicopter engines, 14 military-grade aircraft navigation systems, and 2,000 advanced precision-skill weapons systems. U.S. lawmakers on the Senate Foreign Relations Committee have reportedly delayed clearing the proposed sale over concerns that President Mohammad Ibu hari is drifting towards authoritarianism. Issues on the front burner include the ban on Twitter, alleged systemic corruption, and the Nigerian military's role in the deadly crackdown on hashtag eltsas protesters last year.