Thanksgiving and Christmas are approaching. And that means an unspoken tension is building that pits workers with kids against those without. Who should get priority for time off? The conflict between parents and non-parents is a serious matter for many employers, as Katherine Reynolds Lewis found. She just wrote about the topic for The Fiscal Times. The article featured the experiences of Richard Levy, a research director who doesn't have kids. Levy and Reynolds Lewis spoke with CNN's Don Lemon about parents versus the childless on the job.