As genetic testing proliferates, a new federal law prohibits employers from asking for genetic information about you, or from using it to deny you coverage, writes Fortune’s Anne Fisher in her March 5 Ask Annie column. Are you worried about losing your health insurance if you lose your job? If you’ve already lost group coverage because of a layoff, have you been able to find an affordable replacement? Are you more likely to get genetic testing if you know the results wouldn’t hurt your insurability? Are you worried an employer wouldn’t hire you based on genetic test results?