Abstract: PET systems with TOF-DOI capabilities provide excellent spatial and timing performance. However, they typically require a large number of readout channels, which increase system complexity, ...

The Signalgate scandal that enveloped US Secretary of Defense Pete Hegseth in March appears to be symptomatic of a wider lax attitude towards the use of non-approved messaging apps by officials and ...

Defense Secretary Pete Hegseth risked endangering U.S. military personnel when he used the commercial messaging app Signal to discuss real-time war plans, a report by the Pentagon’s acting inspector ...

A highly anticipated report from the Defense Department’s inspector general found that Secretary Pete Hegseth endangered troops when he sent detailed information regarding the quantity and timing of U ...

WASHINGTON(AP) — The Pentagon’s watchdog found that Defense Secretary Pete Hegseth put U.S. personnel and their mission at risk when he used the Signal messaging app to convey sensitive information ...

Defense Secretary Pete Hegseth addresses a meeting of the Ukraine Defense Contact Group at NATO headquarters in Brussels, Oct. 15, 2025. (Omar Havana/AP) A Pentagon inspector general report confirmed ...

A Pentagon watchdog has determined that Defense Secretary Pete Hegseth risked the safety of U.S. servicemembers by sharing sensitive military information on the Signal messaging app, according to a ...

The Pentagon’s watchdog found that Defense Secretary Pete Hegseth put U.S. personnel and their mission at risk when he used the Signal messaging app to convey sensitive information about a military ...

WASHINGTON (AP) — The Pentagon’s watchdog found that Defense Secretary Pete Hegseth put U.S. personnel and their mission at risk when he used the Signal messaging app to convey sensitive information ...

Add Yahoo as a preferred source to see more of our stories on Google. WASHINGTON (AP) — The Pentagon’s watchdog found that Defense Secretary Pete Hegseth put U.S. personnel and their mission at risk ...