Washington DC is desperate to try to ban all guns no matter what the Constitution or Supreme Court says.

Via CrimeResearch.org:

As we have previously noted, prohibiting concealed handguns within 1,000 feet of a school can in some states essentially amount to a concealed carry ban.

Technically, DC allows permitted concealed carry, but the law is written in such a way that it would ban permit holders from carrying in virtually the entire District.

Even the 124 people who are legally permitted to carry are really currently banned from carrying virtually everywhere.

Read more here.