The National Law Enforcement Officers Memorial is running out of room for new names.

An average of 337 names are added to the memorial every year, and at this rate, there won't be enough room. 

When the memorial was first dedicated in October 1991, it displayed the names of 12,561 officers who died in the line of duty through the end of 1990. Over the past 10 years, an average of 158 officers have died in the line of duty every year, but since the memorial was created, extra names were added that weren't originally planned for.

Officer.com