Barack Obama's Safety

Now we all know that Barack Obama is Black.(duh.) Even in the the year 2008, racism is real and still exists. I'm pretty sure in America people have access to weapons that can pick an ant off of a tree from a hundred feet. What will happen if a skinhead or **** member gets their hands on weaponry like that. If somebody wants you ****, chances are you will more than likely die, even with secret service (if they really really want you ****.) Question????? What will happen to this country if Obama were assassinated by a white man?(GOD FORBID) -Racial Tension -Segregation -Riots -Downfall of a great country I'm just concerned.