Despite their rocketing sales, energy drinks have come under attack in recent years by authorities, politicians and consumer advocacy groups. A number of deaths potentially tied to the products have come to light, and the increased scrutiny may have triggered more investigations. Takeaways include: *Furor over energy drinks hasn't died down since a number of deaths potentially tied to the products have come to light. *Some private plaintiffs lawyers have pounced on energy drink marketers, suing them for wrongful death. *Authorities have been investigating energy drinks, with a focus on the advertising and marketing of products.