Author Kate Anderson Brower, who has written a book on first ladies, questioned what President Donald Trump would think of the comment.
'It can be used in many positive ways, but can also be destructive and harmful when used incorrectly.
The swing through Africa will be the farthest Mrs. Trump has traveled on her own since becoming first lady in January 2017.
Trump's Be Best campaign, which she launched in May, centers on three key issues for children: well-being, fighting opioid abuse and positivity on social media.
'It's a honest campaign meant to help children w the many issues they face today, ' Grisham wrote in response.
Stephanie Grisham, the first lady's communications director, decried the media's focus on Trump's cyber activities. To use the word admonish is simply your opinion.
Brennan says he's considering legal action against Trump's move, stating the obvious on Meet the Press about POTUS having yanked his clearance to intimidate current and former government officials.
Higher US tariffs on steel imports from Turkey take effect
Although Mr Erdogan struck a defiant tone, his foreign ministry called for diplomacy and dialogue to solve problems with the US. Independent analysts argue the central bank should instead raise rates to tame inflation and support the currency.
The first lady has raised eyebrows with her "Be Best" campaign that encourages good online behavior, considering her husband's tendency to bully and insult others on Twitter.
'When you give a crazed, crying lowlife a break, and give her a job at the White House, I guess it just didn't work out.
'Good work by General Kelly for quickly firing that dog!' But it will not stop me from doing what I know is right.
She said the first lady's call to prevent bullying of children on social media "elevates an issue that is important to children and families across this country". Add Melania Trump as an interest to stay up to date on the latest Melania Trump news, video, and analysis from ABC News.
Her husband, President Donald Trump, continued his attacks Monday morning on Twitter, this time aimed at John Brennan ("the worst Central Intelligence Agency director in our country's history"), Bob Mueller ("disgraced and discredited"), and Justice Department official Bruce Ohr ("a total joke").
The first lady has accompanied the president to Saudi Arabia, Israel, Turkey, Brussels, France, Japan, South Korea, the United Kingdom and Finland, for his recent summit with Russian President Vladimir Putin.
Lauren Culbertson, Twitter's public policy manager, said during the panel conversation that the platform has developed tools to curb bullying.
She encouraged technology and social media companies as well as schools and community groups "to establish more opportunities for children such as Microsoft's Council for Digital Good".