11.  But speculations persisted of severe unrest there, especially after heavy floods worsened its already chronic food shortages last summer.

12.  Chronic food shortages have been worsened by three years of bad weather.

13.  Communist mismanagement had left the North with chronic food shortages.

14.  Decades of economic mismanagement, aggravated by three years of flooding and drought, have led to chronic food shortages in the North.

15.  Decades of economic mismanagement have led to chronic food shortages in North Korea, aggravated by three years of flooding and drought.

16.  Even before the floods, the impoverished country was suffering chronic food shortages.

17.  Even before the floods, the North suffered chronic food shortages caused by cold weather and mismanagement for years, Seoul officials say.

18.  Even without the natural disasters, North Korea has suffered chronic food shortages caused by inefficient farm management.

19.  Even before the flood, the North suffered chronic food shortages.

20.  Even before the floods, North Korea suffered chronic food shortages.