Ahmed Zewail and Margaret Warner CAIRO, Egypt | We're sitting in the lobby lounge of an upscale Cairo hotel, littered with road-weary journalists and private security personnel. Holding court in one corner is the 1999 Nobel Prize winner for chemistry,…

Given the important nature of events on the ground in Egypt, the PBS NewsHour is offering live streams through a combination of sources which may include Egypt TV, ABC, APTN and Al Jazeera English's channel to our web…