Juul and other e-cigarette makers are facing new limits on the sale of their products in the U.S. But internationally, vaping companies are looking to grow. How governments regulate e-cigarettes varies wildly. In some countries, doctors recommend them as a useful method to quit smoking. In Thailand and other nations, they're banned as a public health menace. On this edition of Global Journalist, a look at the global climate for e-cigarettes.