Hah. I love how people always get bad impressions of America as a whole from the people who've seen the worst of it.
I've lived in the USA for all 25 years of my life. In that time, the only guns I've seen fired were at a trap-shooting range out in the woods, and were in the direction of clay pigeons.
I've heard gunshots in the distance ... but on a quiet night in the suburbs you can hear a gunshot from 3 miles away. Even in times of fairly intense gang activity in my hometown, the sound of gunfire was very unusual.
If you're living in the ghetto, running with gangs, yeah, you're going to get dirty, yeah you're probably going to learn of the searing sweet kiss of hot lead. If you're living in a nicer place, and avoid associating with people who insist on always wearing the same combination of colors, the US is a generally pretty safe place.
Despite the bad representation we get from the media, the rate per capita of both violent crime and property crime is hovering around the lowest it's ever been, and has been on the decline since the 1970's. Statistics (with pretty graphs) here