U.S. stocks pre-

U.S. stocks opened lower Monday, or, the situation in Greece and Italy continued to affect the international market. The Dow Jones Industrial, S & P 500, Nasdaq index futures set back about 1% before synchronization. Last week, the weekly Dow retreated 2%, S & P 500 index fell 2.5%, Nasdaq index fell back 1.9%. Investors remain worried about the debt crisis, the summit held last week and did not propose any specific solution. ...U.S. stocks pre-