If your Independence Day plans take you to Washington, DC, know that the Department of Homeland Security is keeping its eyes open for the possibility of violence.
There is always a surprise or two for Washington Mardi Gras and probably the highlight this year was an appearance by the LSU Tigers Marching Band, better known as The Golden Band from Tigerland.
UPDATED 4:30 p.m. ET: Thirteen people are now confirmed dead, including shooter Aaron Alexis. An alleged second shooter is reportedly still on the loose.