After Huawei had to abort a takeover bid for 3Com, the US technology company, in 2008 over national security concerns from Washington, the Chinese telecom gear maker said it had learned its lesson.
It embarked on a charm offensive, trying to convince US politicians that it was not a proxy for the Chinese military and that its networks, routers and switches would not compromise the security of American communications networks.
Yet three years later, Huawei seems to be back at square one.
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