Today on "Special Report":
Bret Baier reports: The U.S. military's much talked about spring offensive in Afghanistan begins, and will be known as "Operation Mountain Storm." We'll have the details.
Major Garrett reports: The political campaign ad wars have begun -- We'll have some samples.
Alisyn Camerota reports: See why some Boston residents aren't excited about July's DNC convention.
Ed Turzanski reports: Hundreds of people killed in massive terrorist attacks on Spain's commuter trains -- Could it happen here?
Details on those stories and more on Special Report with Brit Hume at 6 p.m. ET.
— Guests and topics are subject to change