This biocrude could be fed directly into existing oil refineries, without any need to modify them.

ECONOMIST: Advanced biofuels

All Android users eventually will have access to the application, Mr. Zuckerberg said, without the need to modify their underlying operating system.

WSJ: Facebook Shows Off New Home App for Android Smartphones

Unfortunately, many researchers looking for risk factors for diseases are not aware that they need to modify their statistics when they test multiple hypotheses.

ECONOMIST: Why so much medical research is rot

When it seems imminent that spending will go over the cap, officials say they will need to modify benefits, payment rates, and look to managed care for services.

FORBES: States and Patients Face Cuts in Federal Medicaid Backing and Services

"The beauty of this system is that we do not need to modify the item being protected in any way with tags, chips or ink - it is as if documents and packaging had their own unique DNA, " said Professor Cowburn.

BBC: NEWS | Technology | Laser spots paper 'fingerprints'

Furthermore, scientists think they understand the steps they need to take to genetically modify pig tissue so that it will not be rejected by the human immune system.

BBC: New pig clones: PPL Therapeutics