http://adf.ly/1SZdI2, http://adf.ly/1XIsTW, http://www.ctvviet.com, http://www.nhac24.com <br />At airports, train stations and crowded venues across the world, there's an increased security presence in the wake of the Brussels, Belgium terrorist attacks. On opioid medications prescribed in the U.S., there's a new warning that will appear on labels. And in a hangar in Britain, what's likely the largest aircraft in the world has lifted off. Go there today on CNN Student News.
