Steve's Barking: Was an Audit done on the voting machines?

A major candidate for the president of the United States claimed that their there will be voter fraud if he didn't win.
 He won.
 I guess there wasn't any voter fraud.
Just to be on the safe side after the election several voting  machines in several precincts, in several states should be confiscated and tested to see if there was any tampering with the machines.
Now why should a simple audit to find out if there was any tampering with voting machines?
Well if I wanted to rig an election I would get some technicians to change several votes to the candidate that I wanted to win.
It's the easiest way to possibly change votes and in some cases even the technician wouldn't know it.