Share Facebook Twitter LinkedIn Pinterest Email US RETAILERS cheered a buoyant start to the holiday shopping season on Tuesday, but warned that a potential freight rail strike could still cripple the critically busy period. ALSO READ Raising Rates in Europe Isn't as Simple as It Sounds DON'T MISS OUT!Subscribe To NewsletterReceive top breaking news, events, ideas, and more!Invalid email address Give it a try. You can unsubscribe at any time.Thanks for subscribing!