Just a thought.

You need to be able to absorb funds for research or any other venture.
This is the issue anytime you inject these huge sums of money.
For example in research,
There has to be spare research capacity.labs etc
There need to targeted ideas that need to be researched that are ready to use those funds.
There has to be available scientist with expertise in the area being researched.
Of course if none of these are available, you could spend the money anyway.
But would you find the cure for anything, or are you just creating another government funded research welfare program that is nothing more then busy work.

More importantly,

Has anyone thought of “What are we going to do when the private sector rebounds”?
The private sector will start to compete with the government for the same resources, goods and services that are being purchased by the stimulus bill.

Let see in Economics 101, What do you get when there is an Increased demand for finite supply.

The answer is INFLATION. 

How do you fight that NEW GOVERNMENT induced INFLATION?

You raise interest rates and decrease money supply to cool the economy to reduce  the inflation.

Am I the only one who lived through the Carter Administration.
During the Carter years, How high did interest rates get to kill the inflation that was created by Unions get automatic Cost of Living Adjustments (COLAs)? 

(A great social concept that was an economic disaster.Google it )

Now ask yourself this question. If the economy is recovering and growing at anywhere from 2% to 5%, why would we need to spend the stimulus money and undermine the recovery?

Answer: YOU DON”T need to.

We need not play economic “Back to the Future”

As far as the government is concerned you can not fix STUPID

Just a thought. We need to start thinking through the unintended consequence of our actions.

A little fore thought saves a tremendous amount of pain and suffering for  We the People

Respectfully,
R.F. Bruno