Two Democratic senators and a host of environmental groups have called for investigations and accountability following a report that a lobbyist for Exxon Mobil had been investigated for its alleged role in a sweeping hack-and-leak operation that targeted prominent critics of the oil company.

Serious problems in the United Nations World Food Program’s response to the Sudan crisis are hampering the organization’s ability to alleviate hunger in the war-torn country and damaging its reputation with donors, according to a recent internal report seen by Reuters.