Designing a bionic eye has been much more difficult than developing other types of aids, such as a cochlear implant for hearing, say scientists.

WSJ: The Quest to Create A Bionic Eye Gets Clearer

Dr Galt said the employment issue was "not of her making" and Mrs Mann found the hearing "very difficult".

BBC: Helen Mann

I, however, was on the other side of the room and being deaf as a stump, was having a difficult time hearing the translation.

NPR: Sergeant Notes Odd Rituals of War in Afghanistan

Mr. Holder took the opportunity to clarify a remark at a previous hearing in March, when he made headlines by suggesting that criminal investigations of big banks were difficult because of their impact on the economy.

WSJ: Lawmakers Press Eric Holder on AP, IRS