The concept of installing a modern interior inside a traditional home, long seen in Europe, is becoming particularly popular in older U.S. cities.

WSJ: The House With a Surprise Inside

Some of the defendants' relatives tried to storm the Port Said prison to free their loved ones being held inside, Interior Ministry spokesman Brig.

CNN: STORY HIGHLIGHTS

High temperatures can destroy biofilms, as can some chemicals, but neither approach is safe to use inside the delicate interior of a human tooth.

ECONOMIST: Using a plasma torch to clean your teeth