Editor's note: This segment originally aired on June 4, 2015. If you’ve ever traveled abroad – especially with a group – you’ve probably met up with a local tour guide at your destination. KNKX travel expert Matthew Brumley has been leading tours around the world for nearly 30 years. He says local guides are key experts that bring a lot of knowledge to a trip. But there are other layers of guiding that happen behind the scenes. Here are three things you might not know: In a lot of countries, it