The Social Security Fund?

There's no Social Security Fund, you idiot. The government takes that money out faster than it comes in and SPENDS it. All there is in your vaunted "Fund" is a bunch of IOUs. Are you really imagining that there's a big bank account somewhere that all your FICA money goes into and just sits there until you ask for it back at retirement? Please.
Money is fungible, you dimwit. I don't have enough time to give you a full economic lesson, but I wholly suggest you enroll in a class sometime. You desperately need it.
Yes at some point the government determined that the SS Trust fund could not stand still and do nothing; It must be invested like any other long term investment. We invest it in the operation of our government, which is better than borrowing more money from other nations.
Just the same, in 2009 the fed collected $949 billion in SS Payroll tax, and disbursed $944b. Regardless of the fact that the actual funds (Which as we already covered, are fungible) were not lock-boxed and sent out to recipients, the program still collected more than it disbursed.
You're putting money in one pocket and paying recipients out of another pocket on the same pair of jeans. It's hardly the budget-busting money laundering scheme you paint it as.