Guardian: Floodwater rushing down through Pakistan devastated new areas today, flooding parts of southern Punjab and forcing mass evacuations in Sindh. The UN estimated more than 4 million people are now affected by Pakistan’s worst flooding in 80 years, which has washed away homes, infrastructure and crops. Parts of southern Punjab were described as "a giant lake". In Sindh, 350,000 people were moved from their homes in low-lying areas near the river as the authorities issued a flood …