Apparently, we are worried about the wrong things:
http://www.cdc.gov/nchs/data/nvsr/nvsr64/nvsr64_02.pdf
According to the CDC in 2013 these are the numbers of Americans killed by each category, fun read:
Motor vehicle accidents: 35,369
Alcoholic liver disease: 18,146
Pneumonia: 53,282
Leukemia: 23,428
Malignant neoplasm of the pancreas (wtf?): 38,996
Homicide by gun: 11,208