The other General Welfare Clause is in the first of the authorities given to the Congress and it's not a grant, it's a restriction. By which I mean it doesn't say Congress can legislate for the general welfare, it means that everything Congress must do has to enhance the general welfare of the United States of America. It can't grant things to individuals, it can only legislate for the government.
It's hard for me to believe that World Trade Center building 7 came down by itself twenty years from now, people will look at 911 the way we look at the assassination of JFK today. It couldn't possibly have been done the way the government told us.