Twitter is coming of age. Today, the social website will be offering its shares to the public, following in the somewhat faltering footsteps of its competitor Facebook.
But this is not the only the reason the 140-character social website is making its mark. World leaders, from President Obama to Iranian President Hassan Rouhani to Pope Francis, are tweeting away—or at least have those who do it for them. Twitter wars occasionally break out between terrorist warlords and U.S. or Israeli teams of strategic communicators.