Lenovo Group on Monday rejected an assertion that the use of its PCs by the U.S. State Department would be a threat to U.S. national security and said it welcomed an inquiry into the matter.Last week, members of the U.S. China Economic and Security Review Commission reportedly voiced concerns that Lenovo\u2019s involvement in the US$13 million contract to upgrade the department\u2019s computers was a threat to national security and will allow the Chinese government to spy on the State Department.The concerns follow an uproar in the United States\u00a0over the management of port operations in several major cities by a United Arab Emirates-owned company. That company eventually agreed to give up those operations.The State Department contract was awarded to CDW Government of Vernon Hills, Ill. "Lenovo\u2019s participation in the CDW contract, its ownership, and the sourcing of the units were all disclosed and discussed with the State Department, and the national security implications of Lenovo\u2019s ownership of IBM\u2019s PC division were exhaustively reviewed last year," Lenovo said in an e-mail."While we think another exhaustive investigation is unnecessary, we very much want to make sure the facts are understood," the company said.Lenovo disputed the assertion that its computers would make the State Department vulnerable to spying by the Chinese government. "Lenovo products sold to U.S. government customers all have been certified for security and integrity as required to qualify for government procurement," it said.CDW was awarded three contracts as part of the State Department\u2019s Global Information Technology Modernization program. The contracts include a deal to provide more than 15,000 Lenovo ThinkCentre M51 desktops and large-format LCD (liquid crystal display) monitors worth around US$11.7 million. The company will also supply 1,000 ThinkCentre M51 mini-tower PCs with support for Gigabit Ethernet connections, high-performance removable hard drives, and LCD monitors worth around US$1.4 million.These PCs are being delivered to the State Department over a period of six months, with about 500 systems arriving each week, CDW said.-Sumner Lemon, IDG News ServiceCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.