As a result of the mass shooting at Sandy Hook Elementary School in Newtown, Conn., the National Rifle Association is calling for armed guards in every school.

Many Twitter users, however, believe it would be more effective and less expensive to allow teachers to arm themselves if they wish.

https://twitter.com/CoachDB18/status/282546367245725696

https://twitter.com/AgeeMMA/status/282524606269624320

https://twitter.com/MrRossi13/status/282176287152414722

https://twitter.com/HusseinthePlumb/status/280727520226197504

https://twitter.com/vlastimilp19/status/282248019959758848

Most gun control advocates believe the idea is beyond the pale:

https://twitter.com/evebelanger77/status/282319870182440960

https://twitter.com/Spenceusaurus/status/282298511918243840

Meanwhile, a number of cities and states are considering or enacting proposals to allow teachers to carry: