Through five weeks there are three undefeated teams in the NFC

The shares fell as low as $19.35 duringthe session.Concern over the value of Aflac's holdings of hybridsecurities issued by European banks has grown as marketconditions have worsened. "Given the uncertainty of how corporate or governmentactions may affect the value of hybrids, it is difficult for usto maintain a 'Buy' recommendation with Aflac's significantexposure to these securities," Deutsche Bank analyst DarinArita wrote on Monday in a note to investors. A convertible bond is one example,which is a debt instrument that can be converted into equity Similar concerns were raised last week by Morgan Stanley. On Monday, Arita downgraded his rating on Aflac shares to"hold," noting there could be "significant upside or downsidedepending on the outcome of the hybrids." On Friday, ratings agency Standard & Poor's cut Aflac'scredit ratings one notch, citing similar concerns. In response to S&P's downgrade, Aflac Chief ExecutiveDaniel Amos said he was "very surprised and disappointed." Thecompany affirmed plans to maintain its dividend, and said thatit had no need to raise additional capital, and that itexpected to meet a target of operating earnings growth of 15percent. The Columbus, Georgia-based insurer is due to reportearnings on Feb. 2.Aflac counts on the United States and Japanese markets forthe bulk of its business (Reporting by Lilla Zuill) Stocks Bonds.

Each Tuesday morning, we will preview every NFL game of the upcoming week. All of our NFL content, including our most recent power rankings and links to the preseason preview are located here. The inputs to the 10,001 simulations of each upcoming game are based on a rigorous analysis of each team that considers strength-of-schedule-adjusted team and player ratings and then makes modifications for injuries and depth at each position. To see other picks like our Upset and Locks of the Week, as well as our season-to-date performance, click here Game of the Week: No 2 New York Giants 24 No. 1 New Orleans Saints 30 Just how big of an advantage is playing at home Well, 11 of 14 games in Week Six are won by the host team in our projections. And in a week chock full of close, compelling matchups, the home teams will take any advantage they can get.

Through five weeks, there are three undefeated teams in the NFC. After Week Six, at least one of them will be eliminated as the New Orleans Saints host the New York Giants in a battle of the top two teams in our power rankings. To be fair, part of the reason the teams are undefeated and part of the reason they have been able to put up the numbers to each rank in the top two is their strength of schedules.The Giants have had the easiest schedule in the NFL to-date and the Saints aren't far behind (their schedule is ranked just 26th toughest through their four games). The Saints haven't been there every week, but both teams were in our top 10 coming into the preseason. The Giants have won their last three games by a combined 65 points. Those waxings have helped the G-Men to the sixth-ranked rushing offense in the league (at 4.6 yards-per-carry).Brandon Jacobs and Ahmad Bradshaw are helping the team combine for more than 160 yards per game on the ground. That has taken the pressure of Eli Manning, who, despite an injury, played last week and has the Giants' passing offense ranked fourth with 8.5 yards per attempt.Still, the New York defense continues to be the talk of the team.

The Giants are allowing a league-best 211 yards per game and are first against the pass, allowing just 4.9 yards per attempt. New York has also posted 14 sacks through four games, including four from star lineman Justin Tuck and three more from Osi Umenyiora.However, Drew Brees is certainly no JaMarcus Russell or Josh Johnson (two of the more recent quartebacks to start agains the Giants), so New York is in for its greatest challenge of the season The same, however, could be said for Brees and his Saints. New Orleans got a road victory at Philadelphia when the Eagles were without Donovan McNabb and have otherwise picked on Buffalo and rookie quarterbacks. Reggie Bush, Pierre Thomas, and Mike Bell each have more than 30 carries and are averaging 4.1, 6.4, and 5.1 yards per carry, respectively.After throwing for nine touchdowns in his first two games, Brees hasn't found the end zone in his last two games and could find it hard to get on track against the Giants' defense.On defense, New Orleans ranks seventh in the league in scoring, allowing just under 17.6 points per game and is eighth in rushing defense, allowing just 3.7 yards per rush on the ground. New Orleans is favored in Vegas by just a field goal, so it beats the spread at a 60 percent clip The over looks like an even better play. With the total opening at 47 points, the offenses beat out the defenses to top that at a 69 percent rate The Saints' rushing ability gives them the edge.