1.   Among the amendments being considered is a provision that would bar the execution of mentally retarded convicts.

2.   Executing mentally retarded convicts has raised questions in some high-profile cases in Missouri.

3.   George W. Bush should take the truly compassionate step of using his clemency powers to ensure that no more mentally retarded convicts are executed in Texas.

4.   They urge Perry to sign legislation that would ban the death penalty for mentally retarded convicts.