This year's elections mark the fourth straight cycle when more Democrats than Republicans retired from the Senate.

CNN: Senate Overview

Facebook founder Mark Zuckerberg announced this month that the company has more than 1 billion monthly active users.

FORBES: Facebook: Mobile Growth Takes Off in Emerging Markets

We mark this anniversary by honoring the patriots who perished more than seven decades ago, extending our thoughts and prayers to the loved ones they left behind, and showing our gratitude to a generation of service members who carried our Nation through some of the 20th century's darkest moments.

WHITEHOUSE: The White House