Today's electrodes do not reach very far into the spiral, which limits the perception of low frequencies.

ECONOMIST: Cochlear implants

They make him conscious of his vulnerability, they sharpen his perception of his limits, they fill him with sudden insight into the futility of all things, of all people.

NPR: 'The Swallows of Kabul' Book Excerpt

McCutcheon and Danielczyk are about limits on direct contributions to candidates, which are much more vulnerable to the perception of corruption and, as we recently learned in the case of Jesse Jackson Jr.

FORBES: Supreme Court Rejects Case Challenging Corporate Political Donations