and i couldn’t find parking.  I went with a friend and we planned it perfectly.  We would go early and park in the hospital, and walk to the demonstration.  But we could barely get to the entrance, and when we finally did, we learned the entrance was closed.  So we drove around for over half an hour without being able to get near any place to put the car. and then we went home.  The streets had been crowded with people – every where we went – but the way home was empty.  We could see the cars coming from the other direction – all in a traffic jam.  

So if there were 300,000 people at the demonstration there were at least another bunch of people stuck in their cars, all asking for the release of the hostages.