Mt. Gox USD withdrawals could take 22 months.

'My US Dollars are "stuck" in a Bitcoin exchange'

This seems to miss the whole point of bitcoins. To "free" your US Dollars, use them to buy some bitcoins, transfer the bitcoins to some other exchange, sell them there, and somewhat less than 22 months later, you have your money.

The article does not report any difficulty in withdrawing bitcoins from Mt Gox.

(After researching this topic a further 5 minutes, I do notice that the USD bitcoin price is a bit higher at Mt Gox than at, for example, Bitstamp, which amounts to taking a 9% loss if you use the method described above to withdraw your USD from Mt Gox.)