21.   There have been hundreds of North Korean violations of the armistice over the years, all protested without penalty or visible effect.

22.   There have been hundreds of North Korean violations over the years, all protested without penalty or visible effect.

23.   Trade analysts say the most visible effect in many countries will be the appearance of more foreign banks, securities firms and insurance companies.

24.   The announcement that schools would reopen had a visible effect in soothing plague fears in this city of nine million people, where two plague deaths have been reported.

25.   The government has also recently banned the use of heating oil in diesel-powered taxis, a much cheaper fuel but with very visible polluting effects.