Barr, none: the White House’s defiance

The no-show of America’s attorney-general in Congress is just the latest example of the White House’s broad stonewalling policy; we look at the constitutional crisis that may be brewing. Facebook’s blocking of extremists yesterday is just one front the social-media behemoth is fighting. Mark Zuckerberg’s bid to remake the platform will probably ape its Chinese rival, WeChat. And, we check into the Czech Republic and Poland, finding one immigrant group being embraced in a notoriously anti-migrant region.