Cambridge resident Dzhokhar A. Tsarnaev, 19, has been named as the man being hunted by thousands of police officers as a suspect in the Monday bombing of the Boston Marathon and violence that began Thursday night in Kendall Square and led into Watertown and other communities.

With Monday’s attacks on the Boston Marathon fresh in mind, citizens had even more reason to fear the coming of mile-long trains filled with ethanol snaking their way through Cambridge and Somerville twice a week.

There is no threat to public safety in Cambridge, police said Monday, despite reports throughout the day by residents rattled by the Boston Marathon explosions earlier in the day.

An attempt at a citywide policy on surveillance cameras is in the works through the City Council’s Public Safety Committee, which held a meeting Wednesday hinting at just how widespread camera use is in city schools and police investigations – and how much more widespread it could be.

The city’s 6,400 street lights and 575 park lights will be converted to LEDs from traditional bulbs over three years, but in approving the first $2 million for the project the City Council faced a bigger decision: Whether to put up security cameras at the same time.

The mayor offered an odd invitation to Cambridge’s 9/11 commemoration during the week’s School Committee meeting.

Right after 9/11 there were a couple of things that hit me pretty hard.

A bid for surveillance cameras in high-crime areas returned to the City Council agenda Monday, a week after a Memorial Day shooting in Area IV that injured one person.

Two Muslim men thrown off a Delta flight Friday are saying “If they understood Islam, they wouldn’t do this,” but that’s a lie.

Growing up in the age of Reagan and his weird wars might have totally and permanently burned out my outrage over presidential adventures in armed conflict.