Taiwan ally quits Bush governmentBILATERAL RELATIONS: Peter Brookes, who has supported Taiwan in his capacity as a US defense official, will leave his post some time in the summerBy Charles SnyderSTAFF REPORTER IN WASHINGTONPeter Brookes, one of Taiwan's most steadfast supporters in the George W. Bush administration, has resigned his position, in a development that took many China watchers in Washington by surprise. Brookes, the deputy assistant secretary of defense for East Asia and the Pacific, will leave his position barely a year after he took the post on July 16 last year. News of his resignation broke in a...