strategist steve freedman says the wild card is what happens in europe. >> you are in a stage where you are just getting a lot of comments from different countries, from policymakers, and those things are random and hard to predict. i think that they do have the potential to continue promoting volatility in the markets. >> reporter: so in this week before thanksgiving, brace yourself for the possibility of more market indigestion. erika miller, 'nightly business report," new york. >> tom: still ahead, tonight's "word on the street" wal-mart. the world's biggest retailer reports earnings just before the most important season for its industry. thestreet.com's jeanine poggi joins us. president obama's health care overhaul is headed to the u.s. supreme court. the justices announced this morning they will hear challenges to the law, which could lead to one of the court's most important decisions in recent history. at issue? a mandate that requires all americans to enroll in a health insurance program by 2014. 26 states and one business group have asked that the entire law be repealed. the hi