Are you questioning the towers were brought down by control demolition? If not then you must conclude the USA were being that control demolition.
I'm not sure why you are questioning whether it benefit Israel. It seems like there is much more at play here then beginning to wonder exactly who it benefited while the truth about how the towers were brought down still remain unknown by most.
There still is a war about currency. A new currency was being developed at the twin towers. The banks were being investigated at the Pentagon. The Federal Reserve and the too big to fail businesses (the council of the Feds) didn't want the currency change to take away their corruption.....