Sentence examples for extremely difficult to track from inspiring English sources

"They're extremely difficult to track when they're in the forest," Dr. Rogers explained.

Tor uses encryption and sends communications through a number of difference servers to ensure it's extremely difficult to track users.

In many cases, people kidnapped by the Taliban are taken across the border to Pakistan, where it becomes extremely difficult to track them.

It is extremely difficult to track down all the marines who acquired violations, Sergeant Butler said last week, adding that the corps is prohibited by federal law from using tax dollars to pay individual fines.

"Once these weapons are outside of government control, it is often extremely difficult to track their movement and control who has access to them," said Matthew Schroeder, an analyst who studies missile proliferation at the Federation of American Scientists in Washington.

The byzantine mortgage securitization process that helped inflate the housing bubble allowed home loans to change hands so many times before they were eventually pooled and sold to investors that it is now extremely difficult to track exactly which lenders have claims to a home.

Those deals are extremely opaque and difficult to track, given the use of a plethora of companies and offshore vehicles.

While extremely common, STIs are difficult to track.

It's difficult to track.

His language can be difficult to track.

These things are difficult to track.