Mahmoud Khalil – the Palestinian rights activist, Columbia University graduate and legal permanent resident of the US who had been held by federal immigration authorities for more than three months – has been reunited with his wife and infant son. Khalil, the most high-profile student to be targeted by the Trump administration for speaking out against Israel’s war on Gaza, arrived in New Jersey on Saturday at about 1pm – two hours later than expected after his flight was first rerouted to Philadelphia. Khalil smiled broadly at his cheering supporters as he emerged from security at Newark airport pushing his...