How To Boost Income Without Too Much Risk

From the Wall Street Journal

Look into some lesser known, but sophisticated, investment vehicles. We found four types of investments, most of which have nice 4%-plus payouts—without a lot of risk.
[...]
One big caveat: If in a year or two the Fed starts raising interest rates, you can expect the value of these to go down.

Read more

I always get a little worried when I see an article mention "sophisticated investment vehicles"....