Won't start, no sound when key is turned
I have a 2002 ford taurus se that I just bought a week ago.
It ran and started just fine up until a couple of days ago.
Drove into work, got ready to leave 8 hours later and car
would not start. Just silence when I turned the key.
Changed positive battery terminal, noticed that it was
loose and junk. Car still would not start. What is it?