Why can't you drive with a pacemaker?

Accident Fund Insurance Company of America 27 Allied Insurance 26 Ameriprise Financial 15 Amica Mutual Insurance 20 Arbella Insurance Group 13 Cambia Health Solutions 32 Cigna 26 Encompass Insurance Company 18 Erie Insurance Group 19 First Insurance Company of Hawaii 16 General Re 29 Health Care Service Corporation 25 Liberty Mutual 17 Lincoln National Corporation 21 Medical Mutual of Ohio 25 National Western Life Insurance Company 14 NJM Insurance Group 5 W. R. Berkley Corporation 24 Zenith Insurance Group 13 Zurich Insurance Group 20