To answer the underlying question, the dumbest thing you can do is to make a false statement to the US government. Take a look at 18 USC Section 1001. It's a felony.

Not to travel to Cuba, but to answer the Bahamas if you are asked the countries to which you traveled and you don't include Cuba if you traveled to Cuba.

Will you be prosecuted? Not likely. But, you will likely wind up in secondary for the next few years because you have demonstrated that you are dishonest in answering simple questions.