By Stephen M. Silverman
Updated September 13, 2001 11:03 AM

On Friday, President Bush is due to visit the Lower Manhattan site where the World Trade Center stood until its twin 110-story towers both collapsed in the wake of attacks Tuesday morning, taking thousands of lives with them. The chief executive said he plans to pray and cry at the site, and his afternoon visit is scheduled to occur after he attends a morning memorial service at the National Cathedral in Washington. On Thursday, as he reviewed America’s military options to retaliate for the siege, he has declared Friday to be a national day of remembrance for the thousands of victims and their families. In a proclamation marking the day, Bush called upon Americans to remember those who’ve been lost with noontime memorial services at churches, synagogues and mosques, the ringing of bells at that hour and evening candlelight remembrance vigils.