I think the essence of these statements is less that you should literally listen to whatever distilled amount of world news your coworkers are talking about and take it as fact, but that if it's remotely necessary for you to even be aware of, let alone have an opinion about, it'll present itself somehow in real life. After that, if it qualifies as relevant to your life, then go about searching for more info, but a vast majority of anything you could hear or read about or watch probably doesn't qualify.

Government policy, sure, if you need to respond to or act on it somehow. Conflict in the middle east? Sure, if you or someone you know has ties there. But again you'll probably just hear about it because it's directly impactful, or you can monitor specifically for those updates using narrow channels.