The meeting took place during Lee's trip to the US from May 13 to 21, and was reported as the first of its kind since 1979, when the US established diplomatic ties with China.
The ministry recently issued a notice to prisons across the country to allow prisoners to visit families during Spring Festival, the news website cyol.com reported.
The memorial has had about 6,000 visitors a day starting in June, nearly double the daily average number in the first half of the year.
The ministry stressed that the foundation of the international economic recovery is still fragile and requires the concerted efforts and actions of all countries.
The message delivered via the country's alert system, part of its much-hyped J-Alert mechanism, warned of a big one directly hitting the Japanese capital - potentially on the scale of the devastating 2011 earthquake that wrought massive destruction.
The ministry said it would step up efforts to implement a series of prevention work including enhancing flood research and reservoir operation to strengthen flood control of the Yellow River.
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The meeting underlined the need to strengthen information security and privacy protection. Illegal collection and transaction of credit information will be strictly cracked down on.
The meeting also urged more support for flexible employment as an important approach to stabilize employment amid the difficult job market this year.
The measures also allow the eligible cross-Straits youth employment and entrepreneurship bases on the mainland to apply for the title of "national science and technology business incubator" and other titles that will give them tax preferences.
The ministry intervened after a passenger engaged in a physical struggle with an airline staff member and was taken away by local police, it said.