Windshield Wiper/washer Switch problems of the 1998 Ford Taurus

Whasher pump seem's to have shorted out while driving down the interstate and caused a short in wirng witch resulted in a under the hood fire! all I did was turn on washer pump to clean winshield and nothing happen soon after I smelled wires burning!soon after I seen fire shooting from under car and then it blazed out of hood between the cowl and firewall! the car stoped running I pulled off the sied of I-70 1 mile marker and then called 911. . . . . .