By David Frum, CNN Contributor
Editor’s note: David Frum, a CNN contributor, is a contributing editor at Newsweek and The Daily Beast. He is the author of eight books, including a new novel, “Patriots,” and a post-election e-book, “Why Romney Lost.” Frum was a special assistant to President George W. Bush from 2001 to 2002.
(CNN) — On guns, President Obama needs a “Plan B.”

David Frum
Even if Congress were seized by a sudden change of heart, the measures the president has proposed seem unlikely to achieve much.
Universal background checks would be a baby step forward. But until state governments join background checks to some effective system of gun licensing, the checks are very easily evaded. A felon or domestic batterer or disturbed person need only find a person with a clean background to buy a weapon for him.
But here are two things that can make a real difference — without a vote in Congress.
First: The president can direct the surgeon general to compile a scientific study of the health effect of individual gun ownership.