Only if a Federal crime was involved.
If your answer is no, are these police officers then somehow less important than the border agents?
No, the state and local police are no less important, but if they get shot, that is a state or local matter, not a federal matter, unless a federal crime was committed.
By not addressing the daily shooting of police officers in the US is "RINO" Bush failing to do his job?
No, it is a state or local issue. The states have governors and mayors to address those issues. GWB's job is federal, not state and local.
Is being shot by a Mexican smuggler somehow more injurious than being shot by a Harlem junkie?
No, but this article is about Mexican drug smugglers shooting a a Federal Officer, not some junkie shooting a local officer.
This shooting is a direct result of the Presidents failed border policy. Try and stay with the issue of the article and thread.