Travel to South Korea

I bought the sweet deals air tickets for the family to travel to Seoul. With the tension between the North and the South, I'm worried my airfare money will be down the drain. Singapore Airlines advised that if I cancel the tickets I'll not get my refund as the fare class does not provide for cancellation. If I were to reschedule, the charge per person is S$30. However, how to reschedule if I don't know when it'll be safe to travel there. Singapore Airlines advised me not to worry for now and to check with them on the status at a later time as currently there's still no travel alert yet. Please let there be peace and please don't let me loose money on the tickets.