For protesters in Tahrir Square, avoiding police arrest required a coordinated effort on the first day of demonstrations.....and it continues to. A man helping to instruct protesters how to do that is thousands of miles away in the United States, communicating through high tech.  The Egyptian Embassy in Washington did not return our phone calls seeking comment. But as VOA’s Carolyn Presutti reports, he's a former Egyptian police officer and he says there's a price on his head.