21. They sell yen for other currencies to buy foreign securities , undermining the yen. 22. To buy foreign securities they generally have to sell yen for other currencies. 23. Numbers showed that Japanese investment in foreign securities , particularly bonds, slowed in November. 24. Witnesses reported the gunmen killed a British civilian working for a foreign security company. 25. Japanese need to sell yen for other currencies to buy foreign securities or assets. 26. The measures announced included one to boost Japanese institutional investor ownership of foreign securities . 27. Greek officials said the foreign security agents will not be allowed to carry firearms. 28. The winning bidders can make the initial payment all in local and foreign securities . 29. Japanese need to sell yen for dollars and other currencies to buy foreign securities . 30. That means these investors will sell yen for other currencies to buy foreign securities .