Thursday April 25, 2013 Happening Now - 5 U.S. Presidents in 1 place

Five United States Presidents will gather together today during "Happening Now" to commemorate the completion of the George W Bush Presidential Center including the Presidential Library and Museum in Dallas, TX.

Presidents Carter, George HW Bush, Clinton, Obama and George W Bush are set to speak. We'll take much of it live. Casey Stegall reporting and we'll talk to Dan Bartlett who served in the Bush administration.

1015EDT -- Motorcade arrives SMU, POTUS proceeds to backstage meet and greet and brief tour. OFFICIAL PHOTO ONLY

1100EDT -- POTUS & FLOTUS attends the George W. Bush Presidential Library & Museum dedication ceremony. Dallas, TX. LIVE

1100EDT -- Program begins.

1130EDT -- Laura Bush delivers remarks.

1142EDT -- Pres Carter makes remarks.

1147EDT -- Pres George H.W. Bush makes remarks.

1152EDT -- Pres Clinton makes remarks.

1157EDT -- Pres Obama makes remarks.

1213EDT -- Pres George W. Bush makes remarks.

1230EDT -- Program concludes.

Later today, President Obama attends a memorial for the 14 victims of a fertilizer plant explosion in West, near Waco, TX last week. President Obama, TX Gov Rick Perry and Senator John Cornyn all set to speak at Baylor University. Flags in Texas at half-staff today. Doug McKelway reporting from Waco.

The Senate could vote as soon as today to allow new Internet sales taxes.

We're learning more about the radical Islam leanings of Boston marathon bombing terrorist Tamerlan Tsarnaev. He and his brother (still hospitalized) are suspected now of using remote-control devices to set off the bombs. We're getting new details in the case as the investigation continues. Catherine Herridge and Molly Line reporting.

Three are injured after a series of explosions on a fuel barge in Alabama.

Clint Henderson is the Executive Producer for “Happening Now” and an avid traveler. Follow his adventures on Twitter, ClintPHenderson, and Instagram, clintpage1.