Only in the wireless industry can a company threaten to go bankrupt to extort more funds from its investors…and have it work like a charm! Clearwire threatened to miss an interest payment and thus cause its debt investors to take over the company. This would have knocked Sprint, with 54% ownership, out of control over Clearwire. While the threat to miss an interest payment may have been a bluff, there is no doubt that Clearwire needed…