Up to 3,000 unaccompanied children who entered the United States illegally are set to be sheltered temporarily at a convention center in downtown Dallas, as the United States struggles to house the influx of unaccompanied minors arriving at the U.S.-Mexico border, city officials said Monday. For up to three months, 15- to 17-year-old boys who illegally crossed the southern border without an adult will be housed by federal agencies at an exhibit hall in Dallas’s Kay Bailey Hutchinson Convention Center beginning as early as this week. According to a memo obtained by The Associated Press and circulated among members of the Dallas City Council, the facility has been described as a “decompression center.” The news comes as the influx of illegal immigrants, including many minors, at the U.S.–Mexico border has reached new highs since the last crisis in 2019. The number of illegal crossings is skyrocketing as President Joe Biden begins implementing …