The five most popular stories on CNN.com in the past 24 hours, according to NewsPulse:
Baby left in arena toilet clings to life: A baby boy clings to life at a South Carolina hospital, three days after being abandoned in an arena toilet after a circus show, police said.
NFL apologizes for Super Bowl seat fiasco: Football officials are apologizing to ticket-holding fans who were denied seats at Sunday's Super Bowl, but that may not be enough to stop lawsuits over the issue from going ahead.
Investigating the killing of a protester: CNN's Nic Robertson investigates the shooting death of a protester by police in Alexandria, Egypt.
Plains, South brace for another winter storm: Snow began falling over Colorado and Kansas on Tuesday as yet another round of winter weather began marching across the United States barely a week after a record-setting winter storm roared across the Midwest.
Toddler disappears from house full of people: The parents of a Texas toddler are struggling for answers days after their young son mysteriously disappeared from a house full of people.