So someone wants to slow up the process for the rest of us.  Having an "oops" button means something is going to be delayed on the other end of the processing side.  I have been e-filing since somewhere around 1866.  I have never sent a return that I didn't mean to send in all of those years.  But I am very careful to make sure a return doesn't go out that shouldn't go out.  More folks should try that and then we wouldn't have the multiple "how do I cancel a return" questions that show up here every year.  Folks always seem to want a magical cure to come from Intuit for all of their issues that arise due to their lack of using due care.