"My wife woke at 2 PM to calls from our adult kids and me. She called me before turning on the TV. I said, 'Turn on the TV and then call me back'. She was floored and spent the afternoon ringing the kids."
"The towers fell before noon. I was woken up by a frantic call from my sister: the US was under attack and the World Trade Center was gone. Despite the shock, classes continued that day, closely following the news."