Three months have passed since the killing of 20 schoolchildren and six adults in Newtown, Conn. And already the sense of urgency for new gun control legislation is waning. President Barack Obama’s top agenda item, a ban on assault-style weapons, isn’t likely to survive in the Senate. A proposal to expand background checks also appears doubtful. And news that the Newtown shooter massacred two dozen people in five minutes may not be enough to save an amendment banning high-capacity magazines. But while it seems not much has changed, there may be long-term hope for gun control advocates: since December, real money is beginning to flow to counter the gun lobby. Diane and her guests discuss the latest on gun control laws.