Reuters: U.S. President Barack Obama unveiled a $2.3 billion tax credit on Friday to boost jobs by promoting clean energy, as new data showed the country’s unemployment rate remained stuck in the double digits. Obama said the credit, from funds earmarked under a $787 billion stimulus package he signed last February, would create 17,000 U.S. jobs and be matched by an additional $5 billion in private capital. “Building a robust clean energy sector is how we will create the jobs of the …