Making a strong pitch for America to stay competitive in the face of emerging economies such as India and China, President George W Bush has urged the Congress to raise the number of H-1B visas that allow companies to hire foreign workers for scientific and high tech jobs. "Congress needs to understand that nations like India, China, Japan, Korea and Canada all offer tax incentives that are permanent. In other words, we live in a competitive world. We want to be the leader in this world," Bush said in a speech in Minnesota on Thursday. To fill vacant jobs in...