George Frederick Watts paintings

George Frederick Watts paintings
Guercino paintings
were evacuated. The Federal Aviation Authority grounded all planes in the United States, an unprecedented step.``It's clear that this is terrorist-related, we're not sure who is responsible,'' one official said of the Pentagon attack.``There was no advance warning of this,'' the official said on condition of anonymity.One of the planes that crashed into the World Trade Center was American Airlines' Flight 11 from Boston to Los Angeles, said Lori Bassani, spokesperson for American's flight attendants union.Bassani said if full, the flight on the Boeing 767 would carry 158 passengers. That would include two pilots and nine or 10 flight attendants, she said.She said she did not know how many people were on board.``Terrorism against our nation will not stand,'' Bush said before