are going to extreme measures to tackle the problem. tim allman reports. by by air... and by land, the battle against the coaches rages on. here at this nature reserve they hunt down and sedate a giant rhino. what they do next may strike you as rather gruesome. me do next may strike you as rather gruesome. we have decided to _ rather gruesome. we have decided to the _ rather gruesome. we have decided to the haunt - rather gruesome. we have decided to the haunt the i rather gruesome. we have - decided to the haunt the entire population because of our high level of threat — de—horn, we're going to de—horn every rhino and even rhinos with calves. , ., , calves. de-horning can be controversial, _ calves. de-horning can be controversial, critics - calves. de-horning can be controversial, critics say l calves. de-horning can be controversial, critics say it