Read the letter on "An MDs report From Ground Zero." This report proves the need for commuter survuval in my opinion. Not just from terrorism but here in California we get a lot of Earth quakes. <br>In that event Infastructure probably will not collaspe, BUT how long does it take to die from a wound, what if someone is trapped in a car, wouldn't you need a knife? A blizzard knocks out the roadways for a day or two. Couldn't you frreze to death?<br><br>A ham radio would have kept me from hiking 30 miles when my car broke down. If I had been slightly injured I probably wouldn't been able to make it out. <br><br>As you can see I spend a lot of time thinking of possible scenarios. The most likely to kill me or others are the situations we face everyday.<br><br>This makes carrying a backpack full of gear EVERYWHERE I go important for survival.