1.   But before injustice can be rectified, there must be a public national commitment to do so.

2.   Nevertheless, he has said that he will entertain appeals and stands ready to rectify injustices.

3.   Some injustices cannot be rectified.

4.   Thus, they supported a national welfare system to rectify social injustice and assist the poor.

5.   Thus, they supported a national welfare system to rectify social injustice and assist the poor--the same system Congress and the President just dismantled.