Brexit is back with a vengeance
The U.K. and the European Union are embroiled in a fresh stand-off, with Britain calling for the Northern Ireland Protocol -- the crucial agreement on which the whole Brexit deal rests -- to be replaced.

In a major escalation this week, Britain's Brexit minister David Frost called for the scrapping of the sensitive compromise with the EU that was designed to prevent a hard border emerging on the island of Ireland. Under the accord, customs checks are carried out on goods moving between the U.K. and Northern Ireland.
Frost blames the Protocol for disrupting trade and inflaming political unrest in the province. The EU -- which says there is no alternative to the agreement -- is concerned Britain is backsliding on an international treaty. In a move likely to sour relations further, Boris Johnson's former top adviser, Dominic Cummings, said on Wednesday that the U.K. always planned to "ditch" the protocol...