Renee Zellweger is one of Hollywood's most famous faces.
As Jeanne Moos puts it, "she may have raised more than her own eyebrows."
Now, many of her fans say they barely recognize her.
Jeanne looks at the public's reaction... and some overreactions.
NORAD put additional aircraft on standby and went into a higher state of alert following the deadly shooting in Ottawa.
Barbara Starr reports from the Pentagon onÂ ways the U.S. increased security following today's attack.