UPDATE 1-FBI wishes it had acted quicker as China stole intellectual property

The FBI wished it had taken swifter action as Beijing recruited U.S.-based researchers to transfer intellectual property from American laboratories, a senior official at the agency said on Tuesday during Senate testimony.China has repeatedly insisted Washington has exaggerated the problem for political reasons, and asked for a response to the FBI's comments, a Foreign Ministry spokesman Geng Shuang said on Wednesday that "Cold War mentalities" should be discarded.