Interpol Answers to No One

Can someone explain to me what this executive order about Diplomatic Immunity for Interpol is supposed to accomplish?

On Dec. 16, days before he left on vacation, President Obama amended, by executive order, a Reagan EO. Larry O'Connor at BigGovernment.com (Breitbart) provides the most succinct description:

In 1983, President Ronald Reagan issued an Executive Order which gave permission to the International Criminal Police Organization (INTERPOL) to operate within the boundaries of the United States. Reagan’s EO put INTERPOL under the same basic guidelines as the CIA, FBI, ATF and other Federal law enforcement agencies.

Two weeks ago, without any announcement, debate, discussion or inquiry from journalists charged with “speaking truth to power” President Obama issued an amendment to this EO. The amendment removed part of Reagan’s order that kept INTERPOL from having full diplomatic immunity while operating within the United States. In other words: Under Reagan and right up until two weeks ago, INTERPOL was authorized to operate within the USA but they did not have full diplomatic immunity and had to adhere to certain laws set forth for investigative agencies. Laws that prohibit authorities from violating our constitutionally protected rights.

Does this mean that somebody from Interpol can bust down any door in America, slaughter whomever they please, then hop on a plane for home? Is that what it means? Because I don't understand how this helps America. I don't understand how a pResident, who is supposed to represent Americans' best interests, can sign away our rights like this. What is the up-side?
Hat Tip Examiner.