Grand Central Terminal kicks off its centennial celebration today. Share your stories and hear from WNYC reporter Jim O'Grady on-site and Kurt Schlichting, professor of sociology and anthropology at Fairfield University and the author of the book, Grand Central Terminal: Railroads, Engineering, and Architecture in New York City.

George McDonald, founder and president of the Doe Fund and candidate for Republican nomination for mayor, talks about his candidacy.

Hooshang Amirahmadi, founder and president of American Iranian Council and Rutgers professor and director of its Center for Middle Eastern Studies, talks about his decision to run for the Iranian presidency as an expat.

Julia Preston, national immigration correspondent for the New York Times, explains the differences between President Obama's immigration reform proposal and the Senate's.

Andrea Stuart, British journalist and author of  Sugar in the Blood: A Family's Story of Slavery and Empire (Knopf, 2013), talks about her family's history of slavery in Barbados.

Liz Benjamin, host of Capital Tonight, blogger, talks about Ed Koch and New York Uprising, the campaign to get state legislators to pledge to reform redistricting.