There's big news this morning about the developer of small modular reactors.The U.S. government's growing interest in nuclear power has contributed significantly to the rise in upstart nuclear power stock NuScale Power (SMR -19.49%) lately. But it's another arm of the government, the Securities and Exchange Commission (SEC), that is energizing the bears today thanks to news that the agency that regulates U.S. securities is currently investigating NuScale Power.As of 10:44 a.m. ET, shares of NuScale Power ha ...