Cairo, Egypt -- On the eve of massive displays of anti-government ferment across the world's most populous Arab nation, opposition leader Mohamed ElBaradei arrived in Cairo and said "there is no going back" on change.
ElBaradei, the Egyptian Nobel laureate, said people have taken to the streets because they "realize the regime is not listening, not acting."
"The barrier of fear is broken," ElBaradei said after he arrived in Egypt from Europe on Thursday. "And it will not come back."
The county has been bracing for a huge outpouring of protests after Friday prayers.
The Muslim Brotherhood has called for its followers to demonstrate after the weekly Muslim prayers, the first time in the current round of unrest that the largest opposition bloc has told supporters to take to the streets.
Now ElBaradei has said he will take part in the protests and passed along "advice to the regime: It's now the time to listen to the people. Make an innocent collective change."
He called for demonstrations to be peaceful...