MEXICO CITY – Mexican officials are complaining that a bill in Georgia's state legislature to tax the hundreds of millions of dollars that illegal immigrants wire home would unfairly hurt Mexicans working north of the border. Sponsored by Republican lawmakers who charge that illegal immigrants use basic health and education services without contributing to them, the bill would force anyone unable to prove their legal status to pay tax on their wire transfers. Mexicans living in the United States sent home about $20 billion to their families last year, more than all the foreign direct investment in the country and...