Airlines in the US cancelled more than 2,100 flights on Sunday, the highest since the federal government shutdown began.

ABC News’ Devin Dwyer reports on the Supreme Court as they consider whether to uphold a federal ban on guns for those subject to domestic violence restraining orders.

Protesters, angry that their demands aren't being met, blockaded entryways with luggage carts and targeted airport officials and police, at one point even detaining a reporter for state-run media.