Japanese authorities need to strengthen the national currency, the head of the ruling Liberal Democratic Party's Policy Research Council, Itsunori Onodera, said Sunday. According to him, a weakening yen leads to a rise in the cost of living, especially noticeable for households.At the same time, ahead of upcoming trade talks with the U.S., Onodera emphasized that Japan should not use its huge investments in U.S. government bonds - the largest outside the U.S. - as a tool of pressure in response to tariffs imposed by the Donald Trump administration.Currency policy is expected to be one of the key topics of this week's bilateral trade talks.Amid the tariff news, the yen strengthened, breaking through the The nearest support zone for the USD/JPY pair could be the range of 139.50-141.50.