For one thing, getting a warrant would mean revealing too much information to Carter appointees like this one. Those who are making phone calls to jihadis and suspected jihadis world-wide (you know, the people who want to destroy our nation and its freedoms?), should be subjected to having their phone calls to the enemy monitored.
They are not entitled to the protections of the 4th Amendment, assuming it even applies to overseas phone calls. As a Supreme Court Justice once noted, "the Constitution is not a suicide pact" (Jimmy Carter, the ACLU, and CAIR notwithstanding).
Strawman argument
Those who are making phone calls to jihadis and suspected jihadis world-wide (you know, the people who want to destroy our nation and its freedoms?), should be subjected to having their phone calls to the enemy monitored.
I agree, show cause, get a warrent do the job.
The USA has operative around the world monitoring communications all day, every day.
This information is, and always should be used to acquire permission for wiretaps within the USA.