US needs other nations' help to fight terrorism

Just a week after the United States marked the 15th anniversary of the Sept 11, 2001, terrorist attacks, it again found itself in the shadow of terrorism.

A bomb explosion in New York City that injured 29 people on Saturday, a stabbing attack at a Minnesota shopping mall that left nine wounded, and an earlier blast in suburban New Jersey sent shock waves across the country. Although investigations into the attacks and the attackers' motives are still under way, New York Governor Andrew Cuomo called the Manhattan blast "an act of terrorism", while the Islamic State group claimed responsibility for the Minnesota attack.

All these point to the harsh reality that the US is not safer than it was 15 years ago despite its "war on terror". From Boston to San Bernardino to Orlando, homegrown terrorists have carried out deadly attacks one after another. This is fast changing the way of life for Americans as well as how they see themselves and others.