No matter how many precautions journalists take in Egypt, it is mostly about luck.
http://lens.blogs.nytimes.com/2011/02/08/what-not-to-bring-to-tahrir-square/?ref=media
[excerpt]
It is rare that the most important piece of equipment in your bag is the bag itself, even more rare for that bag to be a black plastic trash sack slung over your shoulder as you walk past pro-government thugs on a bridge over the River Nile. The trash bag's purpose, of course, is to conceal your large nylon camera bag, which is likely to get you grabbed off the street by the aforementioned thugs.
Sometimes the hardest part of a story is getting there. Sometimes it is getting around. Sometimes it is obstructive intelligence agencies and soldiers. Sometimes it is lawlessness, sometimes overattentive law enforcement. Sometimes it is lack of transport, poor communications, power blackouts, accreditation difficulties or a hostile local population.......