Examples of Unethical Research. Whichever ethical requirement may be chosen, the history of human research offers grim examples of its violation. During World War II, German researchers performed a large number of experiments in concentration camps and elsewhere.
First, lower income earners pay no federal income taxes on Social Security benefits, so taxation is not an issue for them. However, once a relatively low threshold level of taxable income is surpassed, somewhere between 50 to 85 percent of benefits are subject to taxation.
FICA Taxes. FICA taxes are the combined total of Social Security and Medicare taxes you pay on certain sources of income. These taxes are withheld at flat percentage rates, based on your total earnings subject to FICA. FICA payments withheld are converted to credits and posted to your Social Security account. These credits determine the amount of Social Security benefits you receive during retirement.