Scott Brown is right. The federal government has never created a single job in its entire existence and is completely powerless to do so...
(pics of people with government jobs)
And if you're a "private sector" worker for General Dynamics, Raytheon or some other military contractor, or for the federal arm of a services/consulting company like Booz Allen Hamilton or Deloitte, your job basically would not exist were it not for federal dollars creating demand for it.
and instead there would be other jobs in other industries if those funds stayed in the private sector rather than through the IRS and the military industrial complex.
That is presuming there is a fixed pool of dollars in the economy which can be allocated between private and public.
In fact, not all spending and investment is created equal. Government money spent on productive work by low- and middle-class workers goes directly into the economy and is spent on private sector goods and services, whose providers spend the money again. This is the multiplier effect and it's why stimulus in a time of low demand can provide a genuine boost to the economy.
If you want to talk about the military-industrial complex, I'll counter with wasted private spending and investment that stops dollars right in their tracks--how about building McMansions in Fresno on spec, or handing millions to executives who can't possibly spend or invest it all productively.