This is the LifeStraw. You may know the LifeStraw as the straw-like filter for drinking water when you're camping. Or maybe you have one in your fridge to filter your tap water.But did you know that the LifeStraw is also a dragon slayer once wielded by a US president. Let me explain. The concept for the Lifestraw originated with the Tor people in Moritania.It was developed further by the company Vestigard, a Swiss-based global health company, and later evolved into the Lifestraw guineaorm filter in partners ...