https://www.reuters.com/article/us-qualcomm-m-a-broadcom/u-s-panel-says-concerns-over-broadcom-deal-warrant-full-investigation-treasury-idUSKCN1GI1S8 >A U.S. government security panel has identified potential security concerns that warrant a full investigation of Singapore-based Broadcom Ltd's $117 billion bid for chipmaker Qualcomm Inc , a senior U.S. Treasury official said in a letter to the companies on Monday.