Express Scripts will buy rival Medco for $29.1B.
More people sought unemployment benefits last week.
Eurozone set for Greek deal, temporary default.
Hope for Europe crisis meeting lifts markets.
Leading indicators rise, signal slow growth.
Philadelphia Fed manufacturing index rebounds.
Progress scarce as debt limit impasse continues.
United Continental 2Q profit drops.
AT&T stays strong against threat of Verizon iPhone.
Eli Lilly 2Q profit falls 11 percent.
