Investors seeking advice from discount brokerage firms would be wrong to assume the advice they get is impartial. On the contrary, advisors at some of the biggest discount brokerage firms make more money if they steer clients toward more-expensive products, according to disclosures from the firms and people who used to work at them. That means customers could end up with investment products and services that are costlier than they need. Read the original story from The Wall Street Journal.