Federal Reserve Governor Christopher Waller said Friday that he continues to support lowering interest rates but said the central bank needs to be careful amid conflicting economic signals. "I'm still in the belief we need to cut rates, but we need to kind of be cautious about it," Waller said during an interview on CNBC's "Squawk Box." On one hand, he said, the U.S. labor market appears to be losing jobs, potentially signaling a broader economic slowdown. On the other, gross domestic product