I think that would be a dangerous thing because it would concentrate too much power in the hands of one agency. It's bad enough we have the department of homeland security now. What would have been a better move, and far cheaper, would have been to streamline and improve the computer systems to be able to have the different departments e able to share information. One bureaucracy only succeeded in making government bigger (I thought republicans were for smaller government?) and corrupting power.
With The Current Threat Of Terrorism, Etc., Should The US Combine All The Police Agencies Into One National Police Organization?
Absolutely NOT. Think of the work load. That is why we have different agencies for different things. ATF: Alcohol, tobacco and firearms, DEA: Drug Enforcement Administration, FBI, CIA, State Police, County Police and Local police. This umbrella of law enforcement make it much easier.