Architect Daniel Libeskind; AP Phone Probe; Artist JR

Construction workers watch as a 408-foot spire is hoisted onto One World Trade Center.

Daniel Libeskind is the architect behind the 1,776-foot tower for One World Trade Center. He talks about his process, the symbolism behind the design, and his thoughts on architectural trends today. Plus: the Justice Department and the AP phone records; Steven Greenhouse of The New York Times on what lessons can come from the garment factory collapse in Bangladesh; and the artist JR on his Inside Out project that’s been in Times Square; and we kick off our series on obituaries.