“In an unusual step, President Trump has signed an executive order blocking Broadcom’s $117 billion bid to buy Qualcomm. The order released Monday cited ‘credible evidence’ that led Trump to believe the Singapore-based Broadcom, in purchasing America’s largest mobile chipmaker, ‘might take action that threatens to impair the national security of the United States.'”
Source: President Trump Blocks Broadcom’s Takeover Of Qualcomm, Citing National Security : The Two-Way : NPR