When a consumer staples company is sporting a nearly 10% dividend yield, the first thing income investors need to do is ask why. Consumer staples companies should generally be pretty boring businesses, and a yield that high is anything but boring. Getting to the why in Altria's (MO -0.03%) case is pretty easy to do, but the answers suggest that most investors should tread very cautiously. Altria's business isn't very diversified When you look at Altria's financial statements, it breaks its business up into ...