In front of the U.S. Senate’s Permanent Subcommittee on Investigations, Apple CEO Tim Cook reiterated the company’s claim that Apple uses no gimmicks to avoid paying U.S. taxes. “We pay all the taxes we owe. Every single dollar,” Cook said. Under the country’s current tax system, Cook argued that it would be expensive to bring money earned from international sales back to the U.S. As in the pre-released testimony, Cook…