> spies worldwide exploit the credulity of journalists to conceal their violation of human rights.
and
> journalists worldwide exploit the credulity of (…) to conceal their violation of human rights.
and
> spies who are also journalists worldwide exploit the credulity of (…) to conceal their violation of human rights.
and
> journalists who are also spies worldwide exploit the credulity of (…) to conceal their violation of human rights.