Heavy rains have inundated Pakistan, killing at least 233 people, according to the National Disaster Management Authority. The deluge has also destroyed more than a million homes, ruined 80 percent of crops in Sindh province, and sent 300,000 people to refugee camps. The rains aren’t over, either, and floodwaters are not expected to recede soon. The U.S., Iran, Japan, and China have all pledged aid. Just over a year ago, even worse flooding displaced 20 million people and swamped a fifth of Pakistan’s land area.