'I pledge allegiance...'

ike a packed California theme park, the Los Angeles Convention Center boasted a big crowd on Thursday, with long lines, commemorative photos and other touristy trappings and even red, white and blue bunting.Tony Castro in the Daily News.

"It's like Disneyland here," computer specialist Yoosa Lee said as he surveyed the spectacle, which included a video message from the president and a rousing rendition of Lee Greenwood's "God Bless the USA."

And, in fact, the Convention Center may have been the happiest place on Earth for Lee and thousands of others whose lives changed Thursday as they became naturalized citizens of the United States.