Mr. President, you can speak out and help us confront this corrosive element, but time is running out.
If such a verdict is allowed to stand, it will be evidence of the deep and corrosive racism menacing Israel.
To date Obama has been determined not to talk about that, likely because to complain is to risk a corrosive quagmire.
corrosive cor·ro·sive (kə-rō'sĭv, -zĭv)
Causing or tending to cause the gradual destruction of a substance by chemical action. n.
A substance having the capability or tendency to cause slow destruction.