Supreme Court justices get increased security after Roe v. Wade leak: "The risk is real"

The Supreme Court is under lockdown with eight-foot fencing around the building, all entry points blocked to vehicles and more officers on patrol. It's a scene reminiscent of what Washington, D.C., looked like after the January 6 attack on the U.S. Capitol. 

CBS News has learned the nine Supreme Court justices have been given extra security since general threats of violence against the justices have increased after a draft majority opinion suggesting the high court would overturn Roe v. Wade was leaked and published by Politico. The justices' home locations have been shared online and they're receiving more targeted personal phone threats. 

Justice Samuel Alito, author of the draft majority opinion, canceled a scheduled appearance Thursday in Nashville, and the other justices are also cutting back on public events.