1.   But they said the United States would consider it a severe breach in diplomatic protocol for the Chinese to board or search the aircraft without American permission.

2.   For the Republicans to try to paint Clinton with responsibility for this severe breach in U.S. security is stepping beyond the line.

3.   It would also be a severe breach of the armistice that keeps the peace on the Korean Peninsula.

4.   Not to do so would be a severe breach of etiquette.

5.   Such tactics not only represent a severe breach of etiquette, they are also illegal, except possibly in Texas.