Homeland Security employees warned of increased threats amid the turmoil of immigration

The Acting Assistant Secretary of Homeland Security warned employees Saturday that "there could be an increased threat" against them, according to a note obtained by CBS News. The warning comes in the middle of the growing fury on the Trump administration "zero tolerance "immigration policy.

"This assessment is based on specific and credible threats that have been raised against some DHS employees and a sharp increase in the overall number of general threats against DHS employees – although the veracity of each threat varies," says Claire's message. Mr. Grady. "In addition, over the past few days, thousands of employees have had their personally personally identifiable information [sic] published on social media. "

The memo recommends many safety precautions, including not displaying badges in public, paying attention to public conversations and being cautious on all social media. He also recommends that DHS employees "always keep doors and windows closed" and "be aware of unexpected changes in and around your home".

DHS employees are encouraged to call 911 if they feel threatened and if local law enforcement does not respond, call the Federal Protection Service.

Grady says she's "eternally grateful" for all the hard work that DHS employees have put in place, but "there are those who misinterpret your work in a negative way or try to disrupt your work to advance the work." Agenda. "

The Trump administration has adopted a "zero tolerance" policy against undocumented immigrants entering the country in April, holding parents and placing children in contract shelters with the government. Earlier this week amidst intense backlash, President Trump signed a decree temporarily suspend the separation of the family, but said "zero tolerance" is here to stay. The coverage of the controversy dominated the news for more than a week.

On Thursday, WikiLeaks released a database identifying more than 9,000 Immigration and Customs Enforcement (ICE) employees, according to the Washington Post. According to the post, the database included information such as employee personal information and job history extracted from LinkedIn and their LinkedIn profile photos and information about their training and the city and state in which they are based.

As anger increased, protesters disrupted Homeland Security Secretary Kirstjen Nielsen's dinner on Tuesday in a Mexican restaurant. On Friday, the press secretary of the White House Sarah Huckabee Sanders was invited to leave a restaurant in Virginia. The owner told the Washington Post that she had asked Sanders and her group to leave because "this seems like the time in our democracy where people have to take uncomfortable steps and make decisions to defend their morals" .

Demonstrations took place on Saturday nationwide regarding immigration, with elected officials demanding access to shelters where children are detained.

Late Saturday, the Ministry of Health and Human Services (HHS) said in a statement that 522 children had been reunited with their families. These children were under the care of Customs and Border Protection.

HHS said that as of June 20, 2,053 separate minors were in HHS custody. HHS has stated that it "works with relevant agency partners to foster communications and work toward the reunification of every minor and every parent or guardian through a well-established reunification process."

Major Garrett contributed to the report.