Reuters: Two companies leading the U.S. nuclear power revival may curb spending on the next generation of reactors due to delays in federal loan support, officials said. The Energy Department has had little to say in the five months since President Barack Obama announced the first nuclear loan commitment of $8.3 billion to a Southern Co-led consortium for two new reactors to be built in Georgia. The U.S. House of Representatives has approved the Obama administration’s request to add $36 …