Justice Scalia wrote a powerful opinion in District of Columbia v. Heller, No. 07-290, but the first paragraph quotes the D.C. statute as requiring gun to be dissembled. As many have noted, it is disassembled — dissemble means to put on a false appearance.
Howard Bashman posted the problem here. Well, the opinion got the rest right. Moreover, it could have used disable and triggered a challenge under the Americans With Disabilities Act.
For a copy of the opinion, click here.